The Raiders plan to place Waller (hamstring) on injured reserve Thursday, Adam Schefter of ESPN reports.
Official confirmation of the anticipated move isn't expected to arrive until later Thursday, but Schefter notes that the tight end aggravated his strained left hamstring, and the hope is that an IR stint will give Waller the time he needs to heal up ahead of the Raiders' stretch run. In Waller's looming absence, Foster Moreau is in line to see an expanded role in the team's passing game.