Drew Rasmussen has undergone a second Tommy John surgery and will miss the 2018 baseball season, multiple sources confirmed Tuesday.

Rasmussen, a junior right-handed pitcher, was selected 31st overall by the Tampa Bay Rays in June’s Major League Baseball First-Year Player Draft. He did not sign with the Rays and returned to school.

The 6-foot-2, 225-pound power pitcher was a freshman All-American in 2015, compiling a 7-4 record with a 2.80 ERA in 106 innings. He threw the first perfect game in OSU history against Washington State.

Rasmussen underwent Tommy John surgery in the spring of 2016 and returned to the diamond last April, going 3-1 with a 1.00 ERA in 27 innings as a redshirt sophomore. At the College World Series, Rasmussen saved the opener against Cal State Fullerton and pitched 4⅓ innings of one-run relief in the team’s season-ending loss to LSU.

Baseball America’s John Manuel reported that Rasmussen’s pre-draft MRI differed from the MRI taken during his physical with the Rays. The two sides were unable to agree to a deal by the July 7 signing deadline.

Fall practice is currently underway for the Beavers, who finished with the best record in school history a season ago at 56-6.