Dave McMenamin has an update on L.A.’s sidelined big: “In Los Angeles Lakers center Andrew Bynum‘s first full-contact on-court workout Saturday, he leaned on an old friend — literally. Bynum participated in half-court drills and banged bodies with Lakers backup center Derrick Caracter, who despite being a rookie is only six months younger than the sixth-year veteran. The two played prep basketball against each another in their home state of New Jersey. Now Bynum is prepping to make his return from offseason surgery on his right knee and his rehab is in the home stretch. ‘I want to [return] midway through December,’ Bynum said.  ‘Hopefully, that’s two weeks. It’s looking more like a little bit later, probably. I have these two weeks here, then a week of practice. Realistically I’m looking at three weeks.’