Triston Casas

The Red Sox entered the 2025 season with big expectations after adding Garrett Crochet and Alex Bregman to a team that already had Kristian Campbell, Roman Anthony, and Marcelo Mayer all knocking on the door. So far, things have not gone quite as smoothly as fans in Boston were surely hoping. While the club is just two games back in the AL East, that’s with a lackluster 18-18 record thanks in part to spotty health in the rotation behind Crochet. The injury bug has now moved onto the lineup as Triston Casas has undergone season-ending surgery on his knee.

The 25-year-old was expected to be a major piece of the club’s lineup this year, but his campaign is now over before it ever really got going. Casas’s 112 plate appearances this year were subpar, as he hit just .182/.277/.303 across 29 games before going down with injury. Those struggles were mostly fueled by a low .217 BABIP that was sure to rebound given time, however, and there was little reason to think Casas wouldn’t eventually experience enough positive regression and finish the year in that range of a 125 wRC+, which was his career mark entering 2025. Now, of course, he won’t get that opportunity.

Without Casas locking down first base, the Red Sox don’t have many obvious solutions they can rely on to take up the lion’s share of playing time at the position. Romy Gonzalez was off to a hot start (133 wRC+) to open the year in a part-time role, but his .421 BABIP is completely unsustainable and he’s never hit at an even league average level before in his career. Gonzalez is currently slated to share time with Abraham Toro at first base in the short-term, but the switch-hitter has a similarly lackluster career 81 wRC+ while playing mostly in part-time capacities around the AL West over the years. Depth options at the minor league level are similarly uninspiring. Vaughn Grissom was a top prospect in the not-too-distant past but has yet to establish himself at the big league level. Blake Sabol has at least a little experience at first base, but didn’t hit at all in a brief call-up earlier this year.

None of those options appear likely to provide even average production at first base this year for the Red Sox. That could lead the club to look for external additions, but those options may not be substantially better than their current internal group. After all, teams are typically reluctant to swing significant trades this far from the trade deadline, so external additions would likely be limited to non-roster players in other organizations like Mike Ford, Dominic Smith, or Jon Singleton unless they can convince a player like Anthony Rizzo to resume his playing career at this late point in the calendar. Any of those options could make sense as a lefty complement to Gonzalez, and Smith in particular was used as a stopgap by the Red Sox just last year with some success.

Perhaps they could even pry an ancillary 40-man player away without a clear path to playing time away from another organization. Jake Bauers (Brewers) and former Red Sox Justin Turner (Cubs) are both playing in bench roles in the NL Central. Boston’s former chief baseball officer Chaim Bloom now works for the Cardinals, who have Luken Baker on the roster but without much playing time to offer. Juan Yepez is on the Nationals’ 40-man roster but currently playing the minors. Any of those external options could likely be more productive than the club’s internal group of first basemen, but going outside of the organization would require working out a trade with another club who may not be inclined to sacrifice their own depth, particularly in the case of players already on the 40-man roster, and they’re hardly impact options themselves for a team that sorely needs a boost.

One way to replace Casas with a player who can offer a more impactful ceiling would be to move some of the club’s existing talent to first base. Rafael Devers got bumped off third base by the Bregman signing and is currently the everyday DH in Boston. Perhaps he could be shifted to first base, opening up DH for either Anthony or Mayer to make the jump to the big leagues. Another option would be to get Anthony or Mayer regular reps at first in the coming days ahead of a promotion in the near future. Perhaps even Masataka Yoshida, who has been sidelined this year after shoulder surgery hampered his ability to make throws in the outfield, could handle first base and make a quicker return from the injured list.

Any of those players would be a fairly definitive offensive upgrade over either the club’s internal options already familiar with the position or any realistic external additions at this point in the calendar. The problem with that plan, however, is that none of those players have ever played first base as a professional. While the position is fairly low on the defensive spectrum, asking a defensively-limited player like Devers to pick up an entirely new position on the fly seems risky, as would be the case for asking either Mayer or Anthony to balance learning a new position with the adjustments and struggles that can often come with a young player’s first call-up to the majors.

That’s why, as noted by MassLive’s Chris Cotillo over the weekend, Red Sox brass have indicated that they don’t intend to move anyone to first base on the fly. That, of course, could change. The general expectation when the Red Sox signed Bregman was that he would play second base and Devers would remain at third, and that changed fairly quickly after Spring Training began. It’s not out of the realm of possibility that the club finds itself unsatisfied with the options at its disposal and eventually begins having one of the club’s other players taking grounders at first.

How do MLBTR readers expect Boston to address the vacancy at first base? Will they stick with their current group of options, find someone from outside the organization, or move one of their own players to first? Have your say in the poll below:

The rumor mill has been a whirlwind for Red Sox fans this offseason, with the club diving headfirst into the Juan Soto sweepstakes only to come up short, then getting involved in the markets for Max Fried and Corbin Burnes before ultimately pivoting to Garrett Crochet and Walker Buehler. Now, Boston appears to be in the thick of the market for impact hitters. The club has not made its desire to land a bat who can help balance their heavily left-handed lineup out a secret this winter, and they’ve been connected to a number of major bats like Anthony Santander, Alex Bregman, and Nolan Arenado.

There’s been plenty of focus on the possibility of the club adding a right-handed infielder like Bregman or Arenado in particular. Either of those deals could come with complications, however. Kristian Campbell and Marcelo Mayer are both top prospects for the Red Sox who figure to debut in 2025 and fit best on the infield. As the club is currently constructed, with Triston Casas and Rafael Devers at the corners and Trevor Story at shortstop, second base appears to be the cleanest way for either of those players to get into the lineup- or for the club to add a free agent infielder. Bregman has indicated a willingness to play the keystone, but it would be a risky decision for the Red Sox to play a solid defensive third baseman out of position in deference to the incumbent Devers and his lackluster defense. And the idea of adding a glove-first third baseman like Arenado and moving him off the hot corner seems even more farfetched.

That’s led to plenty of speculation swirling around the future of Casas this winter, as the young first baseman would be by far the easiest piece of the club’s infield mix to move. Casas, who turns 25 next week, has done nothing but hit in the majors to this point with a .250/.337/.473 slash line in 222 big league games so far. That’s been good for a 125 wRC+, and with four years of team control remaining the slugger could be a building block for a number of teams around the game—including the Red Sox. While a player with Casas’s combination of talent and team control should garner plenty of attention if made available on the market, it’s worth noting that the youngster’s 2024 season may have raised some red flags that could make potential suitors concerned about his value.

For one thing, he missed most of the season due to torn cartilage in his ribcage. In the 63 games where Casas was healthy enough to take the field, he hit just .241/.337/.462 (119 wRC+) and posted the lowest walk rate (12.3%) of his young career. Both of those are still well above-average figures and not necessarily cause for concern by themselves, but Casas’s sharp uptick in strikeouts is more alarming. He struck out at a 31.7% clip in his 243 plate appearances last year. If he had stayed healthy enough to qualify, that would’ve been the second-highest strikeout rate in the majors last year behind only Zack Gelof. Third on that list is Reds phenom Elly De La Cruz, proving it’s at least theoretically possible to be an impactful major leaguer even if you punch out nearly a third of the time, but that’s a much steeper ask for a player as defensively limited as Casas.

Of course, those potential red flags haven’t stopped Casas from getting plenty of attention in the rumor mill. Chief baseball officer Craig Breslow has insisted that the club isn’t shopping the young slugger, but several reports have indicated that the club is at least listening to offers on him even if they aren’t placing him on the trading block outright. In particular, there was plenty of smoke surrounding the possibility of a trade between the Red Sox and Mariners regarding Casas last month. Those talks reportedly saw Seattle rebuff the idea of either trading one of their young starting pitchers for Casas or else trading Luis Castillo for a package involving both Casas and pricey DH Masataka Yoshida, while the Red Sox balked at the idea of trading Casas for Castillo without also offloading Yoshida’s salary.

With Crochet and Buehler now in the fold, the Red Sox have an abundance of starting pitching options that could make a deal for a player like Castillo less palatable. That being said, reports have indicated that the club could still be open to dealing Casas in order to facilitate other roster moves. One such roster move a trade of Casas could facilitate would be the addition of Bregman or Arenado at third base, while Casas departs the roster in order to allow a potential move to first base for Devers. Alternatively, parting ways with Casas could open the door for the club to instead add a right-handed slugger like Pete Alonso to the lineup at first base if the club opts to keep Devers at the hot corner.

It’s an interesting conundrum the Red Sox face: they’ve missed the playoffs in each of the past three seasons and finally appear poised to seriously contend for the AL East again in 2025. There’s at least theoretically room for an impact player on the infield as things stand, but a complicated positional fit and the presence of impact prospects at Triple-A nearing their big league debut would complicate any such acquisitions.

Should the club stand pat on the infield, preserving the potential star power of Casas and leaving the door open for Mayer and/or Campbell to step in at second base this year? Should the club deal Casas in order to guarantee that there’s room for both a top prospect and an impact addition on the infield, despite the questions regarding Casas’s current value? Or should the Red Sox push their chips in and sign an impact player while keeping Casas in the fold, regardless of the awkward positional fit and the risk of blocking impact prospects? Have your say in the poll below: