On Tuesday the St. Louis Cardinals pitchers and catchers reported to Jupiter, Florida for their first workout of Spring Training. This is normally a day of celebration as it indicates the beginning of a new season, except for Alex Reyes.

Reyes approached the Cardinals medical staff about some discomfort in his right elbow, this led to an MRI. The team is very concerned that he will need Tommy John Surgery, according to Jeff Passan of Yahoo! Sports.

Even if the MRI doesn’t show any significant damage to the UCL, it is likely Reyes’ workload will be reduced as he opens the season in the minors. However, given with how hard Reyes throws, it is likely there is some damage to the UCL.

Losing Reyes, the teams #1 prospect according to mlb.com, would be huge for the club, as he is primed to make the 25-man roster in April. His fastball tops out around 97 MPH and he has a nasty change up.

Reyes made his MLB debut last August he appeared in 12 games, five of which he started. He posted a 4-1 record with a 1.57 ERA in 46 innings pitched.