Less than one week has passed since Japanese baseball star Shohei Ohtani shocked the sports world by agreeing to sign with the Los Angeles Angels. Given that the Angels were not seen as one of the favorites, the decision had potentially long-lasting ramifications and, in short, allowed fans of the club to envision a future with Mike Trout, Andrelton Simmons and Ohtani forming the nucleus of a potentially devastating squad for years to come.

However, Jeff Passan of Yahoo Sports has unearthed information that casts a shadow over the previous optimism, as the report indicates that Ohtani has what is described as a “damaged ulnar collateral ligament” in his throwing arm. Ohtani is seen as the ultra-rare prospect that could have a legitimate impact as a both a hitter and pitcher but, in short, this kind of ailment reportedly caused him to seek a plasma injection in October and could present future issues on the pitching side of the equation.

While details are fuzzy at this point (and the Angels reportedly have not returned calls seeking additional information), what would be clear with this reporting is that Ohtani would be at risk of Tommy John surgery in the future.