Lou Williams sidelined

Lou Williams woke up from his pregame nap and had trouble standing up straight.

A Sixers spokesman said Williams has been battling a sore back for a couple of weeks. The lower-back spasms kept him out of the lineup against the visiting Knicks.

Thad Young was inserted in the starting lineup at the small forward spot. Andre Iguodala slid into Williams’ shooting-guard spot, a place where coach Eddie Jordan likes Iguodala to be.

“I like Andre recently in the backcourt again,” Jordan said. “He did some things earlier in the season when he started in the backcourt. I think he’s playing better now at the guard position. It helps Jrue. It’s still a two-guard front most of the time [offensively]. When Dre gets a rebound and pushes it himself he’s making better decisions now than he did earlier in the season.”