The Raiders are hosting 49ers defensive end Tank Carradine on a visit, a source tells Ian Rapoport of NFL.com (on Twitter). 
Carradine, 29, was a second round pick of the Niners in 2013. He hasn’t quite lived up to his potential and he is coming off of a season in which he missed half of the team’s games. He did start in seven of his eight contests in 2017, however. He tallied 19 tackles and 1.5 sacks and would have placed among Pro Football Focus’ top 50 edge defenders if he had enough snaps to qualify.
The Raiders are keeping busy today as they are also meeting with free safety Marcus Gilchrist. On the other side of the ball, they have released Michael Crabtree in order to sign fellow wide receiver Jordy Nelson.
What a surprise raiders want to sign another former 49ers player.