The eye test finally seemed to confirm what the Boston Celtics have been saying about Walker’s knee. He played 19 minutes against the Milwaukee Bucks and mostly looked good doing so. The biggest question after the game was over was how good his knee would feel the next day. “He was great,” Brad Stevens told reporters in an afternoon video conference. “It wasn’t a heavy practice, obviously, with a 3:30 game tomorrow. But he was great, responded well, and he will incrementally increase his limit.”