Rosario, ranked as the club's No. 3 prospect according to MLB.com, was hit in the face during batting practice before Class A Beloit's game against Peoria. He was standing near third base when a ball struck by one of his teammates hit him above his lip but below his nose. He left the ballpark and was kept overnight at a nearby hospital for precautionary reasons.
The surgery will insert a middle plate above his lip, but as Twins general manager Terry Ryan pointed out, Rosario was lucky he didn't break his nose or lose any teeth.
"It was pregame and he was running the bases like they always do, and a guy smoked a line drive down the third-base line and the ball got on him a lot quicker than, probably, he thought," Ryan said. "But the good thing was his teeth were OK. It could've been a lot worse. But he'll have his procedure, but unfortunately we have to wait for the swelling to subside."
The second baseman was hitting .293 with seven homers, 20 doubles and a triple in 62 games with Beloit before the injury.