Cardinals activate Matt Shaughnessy, release Michael Bush

The Cardinals are getting back one of their defensive starters for the stretch run. The club has removed outside linebacker Matt Shaughnessy from injured reserve/designated for return, the team’s website said Friday. The 28-year-old Shaughnessy has started 16-of-20 games since joining Arizona in 2013, recording 45 tackles and three sacks. The Cardinals also added some…