Raiders tight end Darren Waller (83) stretches during training camp on Saturday, July 31, 2021, …

Raiders tight end Darren Waller (83) stretches during training camp on Saturday, July 31, 2021, ...

Raiders tight end Darren Waller (83) stretches during training camp on Saturday, July 31, 2021, at Raiders Headquarters at the Intermountain Healthcare Performance Center, in Henderson. (Benjamin Hager/Las Vegas Review-Journal) @benjaminhphoto