Weaver (back) was a full participant in practice Wednesday, Jim Wyatt of the Titans' official site reports.
Weaver was sidelined for Week 8 against the Texans due to a back issue, but he's on track to return Sunday in Kansas City. The Pittsburgh product has enjoyed success in his second season of NFL action, registering 10 tackles (eight solo) four sacks, one pass defensed and one forced fumble through six games.