As of Thursday evening, here's what we know, thanks to Mike Trudell of NBA.com and Mike Bresnahan of the LA Times.

Andrew Bynum has a strained right elbow. A strain, which affects muscle tissue, is less serious than a sprain, which affects cartilage or ligaments, so this is good news. He is officially day-to-day (old joke: aren't we all?), but it sounds very doubtful that he'll play Friday night against the Memphis Grizzlies.

Pau Gasol continues his recovery from a strained right hamstring. He went through almost a full practice Thursday, participating in everything except contact activities. Pau says that he feels good but is "very doubtful" for the Memphis game. It sounds like Sunday night's game, at home against the New Orleans Hornets, is his likely return.

Phil Jackson has not announced how he would rework the lineup with both Bynum and Gasol out, but clearly we should expect more DJ Mbenga and Josh Powell.