The operation was performed by Dr. Neal S. ElAttrache, head physician for the Los Angeles Dodgers.
Morejon came out of his second start of the season, at Texas on April 11, after throwing just 16 pitches in 2/3 of an inning. He had no record and a 3.86 ERA in 4 2/3 innings.
The Padres signed Morejon, a 22-year-old from Cuba, to an $11 million bonus in July 2016 as the top pitching prospect in the 2016-17 international class. He made his big league debut on July 21, 2019.
Morejon has made 16 appearances in three seasons, including eight starts, and is 2-2 with a 5.91 ERA.