04/21/12 8:30 PM ET
Youkilis exits with quad contusion after HBP
By Ian Browne / MLB.com
Nate Spears replaced Youkilis at third base.
Earlier this week, Youkilis experienced some difficulty with his groin and was out of Monday's lineup.
Youkilis is hitting .190 with one homer and five RBIs this season.
Youkilis has missed a lot of time due to injuries over the last two seasons, so the Red Sox are hoping he can have a largely healthy 2012.