Robert Williams III just had knee surgery. In Game 3 of the Eastern Conference semifinals, he bruised the same knee, and Marcus Smart collided with it in Game 2 of the NBA Finals.

24-year-old all-defensive big man may be overachieving.

Warriors demolish Boston's huge lineups. With two of Williams, Al Horford, Daniel Theis, or Grant Williams on the floor, the Celtics have been outscored by 33 points in two games. 26 points were scored in 32 minutes.

Horford and Williams dominated the season. When starting together, Smart, Brown, and Tatum averaged 24.6 pp100 and went 27-7. Williams is 4-4 and being outscored by 13.9 ppg.

Terrible Golden State. Warriors led Williams-Horford by 18 points in the first and third quarters. Game 2's fast start limited the gap. Boston has halftime deficits in both games.

Everything is good if Robert Williams gets healthy overnight. Problematic otherwise.

Grant Williams replaced Robert Williams for the Celtics' final four games against the Milwaukee Bucks. Williams is minus-28 with Boston's starting lineup. This may convince Celtics coach Ime Udoka to keep Williams.

The Celtics don't need two bigs to match Draymond Green and Kevon Looney given the Warriors' size. Smart, Brown, Tatum, and Horford are plus-11 with White. 

In non-garbage minutes, this quintet averages 11 points per 100 possessions. Udoka benched them with Game 2 nearly done in the fourth quarter.

White and Smart should start each half defending Curry. Warriors star is 3 for 11 against Smart or White in two games, per NBA monitoring data. Payton Pritchard would earn more bench minutes. 

He's plus-61 for the Celtics in the postseason and helped win Game 1 against the Warriors. His size doesn't hinder him against Golden State's creators as it did Jimmy Butler and Giannis Antetokounmpo.

Williams could help Theis. Playoff risk: reserve centre. He's the Celtics' only net-negative postseason player. 760 minutes: +144, 200: -41. Before Game 2, Golden State beat Theis by 15 points in 13 minutes.

Grant Williams' lockdown defence and 44 percent 3-point shooting may allow Boston to bench Theis without overworking Robert Williams. Williams and Horford were plus-74 through the conference finals but minus-7 in this series.

Grant Williams hasn't played much centre this season. It might work against the Warriors' small lineups. Udoka had a chance to try Grant Williams as a lone big in Game 2, but the coach stuck with his top five players and lost. Game 3 is possible.

Boston's rotation will improve if Theis and Williams are cut. Udoka used his best lineups late in seven-game series against Milwaukee and Miami, and using Theis against Golden State may mean a long Finals. 

Nobody has played 40+ minutes in both games save Tatum, but the Celtics must defend their home-court edge.