Cardinals reach deals with 15 undrafted free agents

The Cardinals announced Monday they had reached agreements with 15 undrafted free agents, including Illinois linebacker Jonathan Brown. Brown (6-0, 238), who led Illinois with 119 tackles in 2013, is likely to be tried at inside linebacker in the Cardinals’ 3-4 scheme. According to NFL Media’s Nolan Nawrocki, Brown had the highest grade of any…