The move clears a roster spot that will go to Mike Muscala who left his Spanish club earlier this week after the Hawks worked out a buyout arrangement.
Pittman was called up from the Austin Toros of the NBA D-League. He was originally drafted by the Miami Heat and had also spent some time with the Memphis Grizzlies. He was signed to help provide some depth to Atlanta's frontcourt which has been decimated with injuries.
More details to come: