UCLA cornerback and NFL prospect Fabian Moreau had surgery Wednesday for a torn pectoral muscle, ESPN.com reported, citing an unidentified source.
Moreau was at UCLA's pro day Tuesday when the injury occurred on the bench press, according to the report.
His exact timetable for recovery is unclear, but he is projected be healthy for July's training camps.
Originally, the injury was described to NFL.com as a "little strain," and UCLA coach Jim Mora downplayed the injury's severity.
"I don't think it's anything serious. ... He's not working out. He did everything at the Combine and had good numbers. A lot of guys decide to stand on what they did at the Combine. Some guys come out and try to improve it," Mora said. "Fabian, I think his numbers were good enough at the Combine that for him to come out here and work out today isn't that important. And all these teams that are really interested in him will be back to see him in an individual workout as well.
"So anything that happened to him I believe is minor and nothing to worry about."
Moreau, who was expected to be a top 40 pick,is the second cornerback to suffer a serious injury during a pro day. Washington's Sidney Jones had surgery earlier this week after he tore an Achilles tendon a few weeks ago.