Brown joined the Bears last Oct. 24 when he was claimed off waivers from the Baltimore Ravens. Given more reps after starter
After playing wide receiver at James Madison, Brown was converted to tight end when he entered the NFL as an undrafted free agent with the Ravens in 2015. He played eight games with one start the past two seasons for Baltimore, catching six passes for 64 yards.
Bellamy enters his fourth season with the Bears. He played in all 16 games each of the past two years, catching 19 passes for 224 yards and two touchdowns in 2015 and 19 passes for 282 yards and 1 TD in 2016. He has also been a top special-teams contributor.
Bellamy entered the NFL with the Chiefs in 2012 as an undrafted free agent out of Louisville. He appeared in three games for Kansas City as a rookie and five contests for the Washington Redskins in 2013 before joining the Bears in 2014.
Callahan has played in 20 games with 13 starts the past two seasons with the Bears, recording 59 tackles, one sack, four tackles-for-loss and 12 pass breakups. After showing promise at nickel back as an undrafted rookie from Rice in 2015, he was limited to 11 games last year by injuries.
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