Raiders head coach Josh McDaniels said Waller (hamstring) will practice Wednesday, Vincent Bonsignore of the Las Vegas Review-Journal reports.
Waller missed most of training camp and all of the preseason, seemingly practicing only a few times since late July. There's also been talk of him desiring a new contract, though it isn't necessarily a factor in Waller's availability. He'll have a week and a half to get ready for the Raiders' season opener against the Chargers on Sept. 11.