Sean Manaea

Oakland A’s lefty Sean Manaea is set to return to the big leagues when rosters expand. He will get the start against the Yankees on Sunday, tweets MLB.com’s William Ladson.

Manaea was emerging as the ace of Oakland’s staff when he hit the injured list with a left shoulder impingement in late August of last season. Eventual shoulder surgery has kept him behind the scenes of the 2019 season until now. At the time of the injury, Manaea had made 27 starts, going 12-9 with a 3.59 ERA/4.26 FIP across a career-high 160 2/3 innings.

He has been on a rehab assignment since early July where he appears back to his old tricks. In eight starts across High-A and Triple-A, he’s notched 13.1 K/9 while yielding 2.5 BB/9 and an overall 4.71 ERA.

The A’s currently field a veteran-laden, if starless rotation featuring Mike Fiers, Tanner Roark, Chris Bassitt, Brett Anderson, and Homer Bailey. A healthy Manaea should certainly buoy this group, as will the potential addition of prospect Jesus Luzardo at some point in September, though Oakland plans its September additions “to come in waves,” per Susan Slusser of the San Francisco Chronicle (via Twitter).

Fiers/Roark/Bassitt/Anderson boast ERAs that are a combined 3.98 runs lower than their relative FIPs, though whatever dark arts the quartet are engaged in, they’ve not shared with likely odd-man-out Bailey. With a 5.52 ERA/4.02 FIP in 8 starts since joining Oakland, Bailey is the only one of the five whose ERA has underperformed relative to his FIP. He’ll get at least one more start today, but the A’s could very well use the additional roster space to give each of their veteran hurlers an extra day of rest.

In a welcome piece of A’s starter-related news, Susan Slusser of the San Francisco Chronicle has reported that left-hander Sean Manaea will begin a rehab assignment with the organization’s AAA affiliate on Monday. Manaea has been sidelined for the entirety of the 2019 season following September 2018 surgery on his rotator cuff.

In light of the misfortunes the Athletics have suffered in regards to their starting staff this season, Manaea’s return will surely be a welcome one. Though perhaps best known for his no-hit performance against the Red Sox last April, the Indiana-bred Manaea has been best known to Oakland fans as one of the team’s steadier starting options in recent years. From 2016 to 2018, the lefty posted 80 starts that resulted in a 3.94 ERA (4.15 FIP) across 464 innings. Last season, he did an especially laudable job at limiting walks, with an allowance of just 1.79 BB/9 (a mark which, had he qualified, would have placed Manaea 6th among all starters).

In his absence, the Athletics have mostly been scrambling this year to account for other absences. Frankie Montas, brilliant 2019 results notwithstanding, was recently suspended 80 games for PED use; Jharel Cotton was shut down in June with a hamstring injury; young options like Jesus Luzardo and A.J. Puk have been waylaid by setbacks and shaky rehab performances, respectively. Despite these developments, the A’s have maintained a 49-40 record, partly due to quality starts provided by the likes of veterans Mike Fiers, Brett Anderson, and Chris Bassitt.

Athletics left-hander Sean Manaea may require just one more simulated game before he can begin a minor-league rehab assignment, according to Susan Slusser of the San Francisco Chronicle.

After undergoing shoulder surgery last September, Manaea was expected to miss the entirety of the 2019 season. However, Manaea is operating well ahead of schedule, and looks on track to return to the Athletics’ rotation this season. Slusser reported in March that Manaea was aiming to return around the All-Star Break in July, and it now appears that the left-hander is progressing well towards that goal, though there is not yet a precise timeline for Manaea to rejoin the A’s.

Slusser notes that A.J. Puk and Jesus Luzardo, who recently began their own rehab assignments, are likely to return before Manaea, perhaps in early July. Though Puk and Luzardo have each yet to debut in the Major Leagues, both southpaws are widely regarded as MLB-ready prospects who would be pitching in Oakland were it not for untimely injuries.

The addition of Puk, Luzardo, and Manaea would represent a considerable boon to an Athletics club that has essentially treaded water this season. After earning a Wild Card berth last year, the 36-36 Athletics have only managed to hover around .500, remaining on the periphery of the playoff race, but mostly looking like a longshot to rejoin the October fray. Welcoming the aforementioned trio of promising lefties would only help those odds, it would seem, considering the inconsistent starting pitching that has troubled Bob Melvin’s club all season.

Manaea emerged last season as the Athletics’ best starter, pitching 160 2/3 innings for the A’s, ultimately working to a 3.59 ERA. Her peripheral numbers were slightly less impressive, but nonetheless painted Manaea as a valuable left-hander for a playoff club that wanted for starting options. He could slot into a 2019 rotation that has enjoyed a breakout season from Frankie Montas, as well as adequate showings from Chris Bassitt and Brett Anderson. If the three young left-handers can return quickly and make good on their potential, they could fuel a second-half surge in Oakland.