The Spurs have agreed to trade Tiago Splitter to the Hawks without taking any salary back, according to Adrian Wojnarowski.
Splitter was reportedly on the block since the draft but the Spurs were moving carefully then and turned down several offers, likely because they meant taking salary back. The compensation they will get from the Hawks will be a future pick or the rights to a stashed player, meaning Splitter's salary will be completely removed from the Spurs cap sheet.
This is a great get for the Hawks, by the way, even if it costs them a pick.