Boston's Alfredo Aceves hit Byrd with a pitch below the left eye on May 21, causing multiple facial fractures. When Byrd first went to a hospital in Boston, he said he couldn't see.
But he returns to the Cubs following a four-game rehab assignment in Iowa. Byrd batted .267 with a homer and three RBI during his rehab stint and said he was hit with a pitch twice.
In 44 games with the Cubs this season, Byrd is batting .308 with three home runs and 11 RBI. He was an All-Star last season.
To make room, the Cubs optioned outfielder Lou Montanez to Triple-A Iowa. He batted .239 with a homer and nine RBI in 25 games with the Cubs.