CHICAGO (AP) Boston Red Sox right fielder Tyler ONeill could be going back on the injured list after his ailing right knee flared up again on Friday night. O'Neill was just activated from the 10-day injured list Wednesday after being sidelined by right knee inflammation. I don't know what the next steps are going to look like, O'Neill said after Boston's 7-2 lo s to the Chicago White Sox. But I just want to get it cleaned up as soon as po sible. It's not fun playing in pain. O'Neill said he tweaked his knee when he hauled in Paul DeJong's flyball in the second inning. After Lenyn Sosa popped up to catcher for Chicago's first out of the third, O'Neill walked off Kyle Korver Jersey the field with manager Alex Cora and a trainer. It's just really frustrating with how I was feeling, O'Neill said. I was feeling really good earlier in the day. Rob Refsnyder, who moved from left to right field as part of a flurry of moves after O'Neill departed, then made a on Corey Julks' sinking flyball for the second out of the inning. ONeill was acquired by Boston in a with St. Louis. He went on the IL with the knee i sue on May 29. ONeill, who turns 29 on June 22, is batting .250 with 11 homers and 18 RBIs in 44 games. We got to be very careful," Cora said. "Playing short is hard, but let's see where we're at tonight and we'll decide what we do tomorrow. Brad Daugherty Jersey