Searching For A Fifth Starter In Texas

The Rangers solidified the top of their rotation when they landed left-hander MacKenzie Gore in a trade with the Nationals. Gore, Jacob deGrom, and Nathan Eovaldi will form what should be a dominant trio, as long as everyone stays healthy. Former top prospect Jack Leiter delivered a solid campaign in his first full-time look at the big league level, likely earning him the No. 4 spot. After that, it gets murky.

Texas’ starting pitchers led the league with a 3.41 ERA last season, but the club will have to replace a lot of reliable innings in 2026. Veteran Patrick Corbin matched deGrom for the most starts on the team at 30. He’s now a free agent. Tyler Mahle and trade deadline acquisition Merrill Kelly both departed in free agency.

Here’s a look at the remaining mix of options to round out the rotation.

Kumar Rocker

By pedigree, Rocker would be the favorite for the fifth starter job. The 26-year-old was the third overall pick in the 2022 draft. Eric Longenhagen and James Fegan of FanGraphs had Rocker behind only Sebastian Walcott among Rangers prospects midway through last season. That was even after the highly-touted righty was destroyed for 18 earned runs in 20 innings to open the year. He landed on the IL with a shoulder issue in late April.

Rocker made it back to the big leagues for nine starts across June and July. He posted a 4.67 ERA, though a 4.14 xFIP and a 4.34 SIERA suggest he was a bit better than that mark. Rocker found himself back in Triple-A by August. He’s yet to impress for an extended stretch at the highest level, but will likely get the chance to stick in the rotation this spring.

Jacob Latz

Texas used Latz in a Swiss Army Knife role last year, and he pitched well whenever called upon. The 29-year-old lefty made eight starts and 25 relief appearances this past season. Latz’s versatile gig included a quality start and a three-inning save in the span of a week. He compiled a 2.84 ERA in 85 2/3 innings. It came with an xERA and a SIERA above 4.00, so expectations should be tempered, but there might be enough here for Latz to be a full-fledged starter.

Latz relied on a three-pitch mix that featured a fastball, changeup, and slider. He also mixed in a curveball to right-handed hitters. Latz used each of his three main pitches more than 20% of the time, so the repertoire is deeper than that of a typical reliever. The fastball was dominant, holding hitters to a .193 batting average while recording a +11 Run Value. The changeup got whiffs at a more than 40% clip. Latz will have a role on this team one way or another.

Cal Quantrill, Austin Gomber, Nabil Crismatt

The Rangers brought in this group of veterans on minor league deals. They’ll serve as depth pieces if injuries pop up. One of them could find their way into the rotation if Rocker flops in the spring and the club prefers Latz out of the bullpen.

Quantrill spent 2025 with the Marlins and Braves, posting an ERA over 6.00 across 26 starts. He finished last season in the Rangers’ minor league system. Gomber was cut by the Rockies in August after scuffling through a dozen starts. He latched on with the Cubs on a minor league pact, but didn’t make it to the big-league club. Crismatt actually pitched decently last year, putting together a 2.70 ERA in his first six games with the Diamondbacks. He was crushed out of the bullpen in his final outing of the year, which sullies the final line.

Bring back Corbin 

The veteran lefty revived his career in his lone season as a Ranger. After four brutal years to close his time in Washington, Corbin was one of the brightest surprises in the first half of 2025. He notched an ERA under 4.00 through July with the underlying metrics to back it up. Corbin’s performance fell off in the final two months of the season, but he still put up a respectable overall line. Whatever the Rangers did with him, it seemed to work, and he could likely be brought back for a minimal commitment.

Photo courtesy of Steven Bisig, Imagn Images