Rays breakout starting pitcher headed for MRI on left knee

Rays right-hander Zach Eflin exited Wednesday’s game after just four innings, and he’s now headed for an MRI after experiencing discomfort in his left knee, Marc Topkin of the Tampa Bay Times tweets. It’s an ominous development both for a pitcher with chronic knee issues and a Rays rotation that has already been clobbered by injuries in 2023.

Eflin, 29, signed a three-year deal worth a guaranteed $40M in Tampa Bay this offseason — the largest free-agent expenditure (though not the largest overall contract) in Rays history. He entered play with a 3.36 ERA, 25.7% strikeout rate and sensational 3.6% walk rate in 112 1/3 innings — already his highest total since 2019. However, Eflin was hit hard Wednesday, yielding five runs on seven hits and a walk, and he departed after four innings.

Eflin has spoken openly about his battles with knee problems that date back to before he was even drafted. He underwent surgery to repair the patellar tendon in both knees back in 2016, and in 2021 he underwent a second surgery on his right knee. Further problems in that right knee sidelined Eflin for more than two months last summer.

That Eflin’s current issue is in his left knee and not his twice-repaired right knee isn’t likely to be a source of much comfort for the Rays and their fans. The team was surely wary of the risk of renewed knee problems when signing Eflin, though his performance to this point in the season does plenty to highlight why the Tampa Bay front office was willing to take that gamble.

The Rays are already dealing with several notable injuries in the rotation. Shane Baz had Tommy John surgery last September and isn’t expected to pitch in 2023. Jeffrey Springs underwent Tommy John surgery earlier this year and won’t return until 2024. Drew Rasmussen’s season is also over, owing to surgery to repair a flexor tear. Lefty Josh Fleming is on the 60-day injured list due to an elbow issue.

Tampa Bay is already known to be on the hunt for rotation upgrades, and any absence of note for Eflin would only hasten those pursuits. The Rays have been linked to the Cardinals’ rental starters and were reported Wednesday morning to be in talks with the White Sox on right-hander Lance Lynn.

With sudden uncertainty regarding Eflin’s health, the Rays’ only three healthy starters are Shane McClanahan, Tyler Glasnow and rookie Taj Bradley. It’s a talented trio, but injuries have thinned out the team’s depth and contributed to the Rays’ slide in the standings after a dominant start to the season. President of baseball operations Erik Neander, GM Peter Bendix and the rest of the staff seem all but certain to augment the rotation between now and next Tuesday’s trade deadline.