Sources: C's Williams to have knee 'clean-up'

by Gordon Dixon - Boston Celtics C Robert Williams will undergo an arthroscopic procedure on his left knee, which had been a recurring problem during the playoffs, and is expected to return to the lineup early in the regular seasons, sources tell ESPN's Adrian Wojnarowski

Boston Celtics center Robert Williams III to have arthroscopic knee procedure, expected back early in regular season, sources 3:10 PM ET Adrian WojnarowskiSenior NBA Insider Close Host of The Woj Pod Joined ESPN in 2017 Boston Celtics center Robert Williams III will undergo an arthroscopic procedure on his left knee this week, causing him to require four-to-six weeks for recovery, sources told ESPN on Tuesday. The procedure, expected for Thursday, will come six months after Williams had left knee surgery to repair a torn meniscus . The latest procedure is described as a "clean-up" and expected to allow Williams to return to full strength early in the regular season, sources said. Williams, who turns 25 in October, returned for the Celtics run to the NBA Finals and played with some discomfort in the playoffs, causing him to miss seven games. Averaging 10 points, 9.6 rebounds and 2.2 blocks, Williams was the anchor for a Celtic team that led the league in defensive efficiency. Williams held opponents to 38.2 percent shooting as the closest defender, lowest among players to defend 500 shots, according to ESPN Stats and Information. Williams also ranked second in blocked shots per game, trailing only Memphis' Jaren Jackson Jr ., and shot 73.6 percent last season, second best among players who attempted 300 shots, according to ESPN Stats and Info.