Oakland Raiders TE Darren Waller was ‘one of our most impressive players (since he joined the team off the Baltimore Ravens’ practice squad late last season),’ according to head coach Jon Gruden.’When you put the pads on three, four, five days in a row up in Napa, I think that will be a better indication. He’s got a lot to prove. He’s a young player who is a converted wide receiver; don’t forget that. He’s not been brought up as a tight end, but he has made a lot of progress. … He’s got some big shoes to fill, I know he respects that, but he’s versatile, he’s smart, he’s fast. He wants to do good, he’s a great kid,’ Gruden said.

Footballguys View: Waller was a size/speed receiver at Georgia Tech in a long line that included Calvin Johnson and Demaryius Thomas. He has had suspensions and a position change, but could be relevant at a position with only a few reliable options. We’ll be watching him in training camp.