Despite returning on Wednesday, Raiders tight end Darren Waller (hamstring) did not practice on Thursday. It's unclear if his absence was injury-related, but that seems like the most logical reason given how Waller was sidelined for the entire first half of August. (Tashan Reed on Twitter)
The Raiders are presumably taking things easy with their star tight end, inching him back into practice mode so that he can be healthy for Week 1 of the regular season. The 29-year-old ranks fifth among tight ends in the latest ECR.