Red Sox RHP Hunter Dobbins tears right ACL

Boston Red Sox pitcher Hunter Dobbins tore his right anterior cruciate ligament Friday night and was placed on the 15-day injured list Saturday.

The team did not announce a timeline for the rookie right-hander's recovery or plans for surgery.

In a corresponding move, the Red Sox recalled right-hander Richard Fitts from Triple-A Worcester.

Dobbins, 25, left Boston's 5-4 win against the Tampa Bay Rays on Friday in the second inning with what the team termed right knee pain.

The injury occurred when Dobbins covered first on Rays center fielder Chandler Simpson's groundout to first baseman Abraham Toro for the second out of the inning. He came up limping after hitting the bag. Following a warm-up pitch, Red Sox manager Alex Cora called upon Jorge Alcala out of the bullpen.

Dobbins had just been reinstated from the 15-day injured list prior to the game, having missed 18 games due to a right elbow strain. He made one rehab start for Double-A Portland prior to his return.

Dobbins, who made his MLB debut on April 6, is 4-1 with a 4.13 ERA in 13 appearances (11 starts).

Fitts, 25, has split time between Boston and Triple-A Worcester this season. With the Red Sox, he is 1-3 with a 4.28 ERA in eight starts.