At this point in the season, everyone is banged up. It’s just a matter of degree.
In Game 4, Butler banged knees with a Celtic and it impacted him during Game 5, as Vincent Goodwill detailed at CSNChicago.com.
But he could only muster two shots and barely seemed to push off on his left foot—his lead foot, and it hampered what the Bulls could do late as he was their prime fourth-quarter performer.
He couldn’t even go straight up on a jumper over the diminutive Isaiah Thomas without pump-faking, throwing off his rhythm. He wouldn’t elaborate on the injury, although he said it happened during the second half of Game 4 on Sunday night when he collided with a Celtics player.
“I’m good. Everyone’s a little nicked up; I’ll be all right,” Butler said in the locker room.
K.C. Johnson of the Chicago Tribune added this detail.
Boston has done a good job of limiting the number of times Isaiah Thomas is exposed on defense, having to cover Wade or Butler. Essentially, the Celtics switch in sort of a matchup zone to keep IT covering a shooter on the wing, even if his man goes up and sets the pick. Zone’s can be exposed (there’s a reason they’re more a change-of-pace rather than a basic set defense in the NBA), but it involves getting into the middle, getting into the paint. Which comes back to driving the ball and pushing off, things that Butler is struggling to do at his usual level.
There are a lot of other factors favoring Boston in Game 6, but if Chicago is going to force a Game 7 Sunday they need Butler to be an All-NBA level player.