Miami Marlins starting pitcher Sandy Alcantara Jim Rassol-USA TODAY Sports

Reigning National League Cy Young winner Sandy Alcantara was diagnosed with a UCL sprain earlier this month, but he’s set to make a rehab start in Triple-A Jacksonville Thursday, the team announced. Craig Mish of SportsGrid and the Miami Herald, who first reported that Alcantara would start in Jacksonville tonight, tweets that Alcantara has had multiple pain-free bullpen sessions. If things go well in tonight’s rehab appearance, it would seem there’s a real chance that Alcantara could return to the active roster before the end of the season.

It’s surely welcome news for Fish fans, though also perhaps the source of some trepidation. With any injury to the ulnar collateral ligament — the ligament that is replaced in Tommy John surgery — there’s concern of a potential yearlong absence in a worst-case scenario. The majority of UCL injuries tend to result in surgery, though that’s certainly not a universal outcome. Masahiro Tanaka, Ervin Santana, Aaron Nola and Anthony DeSclafani are among the pitchers who have been diagnosed with UCL injuries but avoided surgery. The 28-year-old Alcantara will hope to add his name to that list.

It’s been a tough year for the Miami ace so far. Alcantara has taken the ball 28 times and eaten up 184 2/3 innings, but his 4.14 ERA is nearly two full runs higher than the 2.28 mark that fueled last year’s Cy Young win. Alcantara hasn’t experienced a velocity drop, but his strikeout rate, walk rate, ground-ball rate and home run rate are all worse than in 2022’s career-best season. He’s also given up hard contact at higher levels.

With Alcantara on the shelf, the Marlins have been using Jesus Luzardo, Braxton Garrett, Edward Cabrera and the returning Eury Perez — who’d previously been optioned to the minors to monitor his workload — as their regular starters. Reliever Bryan Hoenig took the ball this past weekend, tossing 4 1/3 innings in his first start since early July. Miami’s starter for tomorrow’s series opener against the Brewers is currently listed as TBD.

The Marlins don’t have any shot at winning the division. The Braves sport MLB’s best record and clinched the NL East some time ago. However, Miami is only a half game out of the third Wild Card spot in the National League. They’re trailing the Cubs for that spot and are one game up on the Reds in the standings. This weekend’s series against the Brewers is a tough task — particularly with Corbin Burnes, Brandon Woodruff and Freddy Peralta lined up to start for Milwaukee — but the Fish close out the season with seven games against the Mets and Pirates, who currently share identical 71-81 records. The Cubs finish with three games in Atlanta and three in Milwaukee. The Reds’ final games will be against the Pirates, Guardians and Cardinals.

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