Orlando Magic center Dwight Howard is not expected to be in uniform at least for the next few games, but he will see a doctor in Los Angeles for a second opinion on his ailing back.
The Atlanta Hawks face the Magic on Friday night in Orlando and look to capitalize on the absence of Howard.
"It's back spasms, basically, caused by bruising and getting pounded," Van Gundy said Thursday afternoon.
"It's not a disk problem or anything, but anybody who's been through back problems knows sometimes they resolve more quickly than others. We're heading down the stretch now, so as much as we'd like to get everybody together and have 'em out there and playing, we've also got to get healthy. It's a tough time."