CHARLOTTE – With one of their regular pass-catchers heading into the free agent market next month, the Panthers held onto some of their depth at the position.
Zylstra, 27, played in every game and caught three passes for 35 yards last season.
Kirkwood, 26, played in just one game last year because of injuries. He started the season on injured reserve, was activated for the Bears game, but re-injured his left clavicle and was shut down for the year. He caught one pass for 13 yards.
As a rookie with