Koji Uehara (hamstring) 'not likely' to be ready for Opening Day

Sunday March 29th, 2015

Boston Red Sox closer Koji Uehara is "not likely" to be ready for Opening Day due to a hamstring injury, manager John Farrell told reporters Sunday

Farrell said Edward Mujica will be the primary closer in the meantime, and Junichi Tazawa, Alexi Ogando and Tommy Layne could pitch the ninth as well, depending on matchups.

Uehara has a strained hamstring and last pitched in a spring training game on March 14. He threw 60 pitches on flat ground Thursday but reported discomfort after throwing off a mound Saturday. 

Sports Illustrated's 2015 MLB season preview rankings​

Uehara's bullpen session was his first since he initially sustained the injury. The Red Sox had hoped he would be able to pitch in a few spring training games this week. 

Uehara, who turns 40 on Friday, signed a two-year contract with the Red Sox in October. He has been Boston's closer for the past two seasons, compiling 47 saves. 

- Dan Gartland

SI Apps
We've Got Apps Too
Get expert analysis, unrivaled access, and the award-winning storytelling only SI can provide — from Peter King, Tom Verducci, Lee Jenkins, Grant Wahl, Andy Staples and more — delivered straight to you, along with up-to-the-minute news and live scores.