Shane McClanahan was supposed to start for the Tampa Bay Rays in the team's Tuesday night series-opener against the Miami Marlins, but he was scratched while warming up in the bullpen due to an apparent upper-body injury.

While the exact details of the reason behind his late scratch haven't emerged yet, Jeff Passan of ESPN shared a video of Shane McClanahan apparently wallowing in utter disappointment upon learning that he was not going to be able to pitch.

The Rays have already said that Shane McClanahan has a left shoulder impingement but the full extent of the injury remains unknown. McClanahan should be getting tests soon to determine the severity of the injury and whether it would mean a trip to the injured list. If Shane McClanahan would indeed have to miss time, then that would certainly be a punch in the gut of the Rays who are in a precarious spot in the wild-card race in the American League. The Rays are trailing the New York Yankees by seven games heading into the Marlins series and are only half a game in front of the Seattle Mariners and the Toronto Blue Jays in the AL's wild-card race.

Shane McClanahan is one of the best pitchers this season in Major League Baseball, as he owns an 11-5 record, 2.20 ERA, and 2.54 FIP. Among qualified starters this season, McClanahan is fourth with 11.12 strikeouts per nine innings and no. 1 overall with a 32.5 strikeout rate. He is undoubtedly a crucial piece of what the Rays are trying to accomplish this season, so his status will have to be closely monitored by the Rays and the team's fans.