Allen is competing with Taylor Heinicke and Will Grier for the Panthers' No. 2 quarterback job, Brendan Marks of The Charlotte Observer reports.
Allen is the underdog in the competition, with Heinicke looking good in the spring and Grier coming in as a third-round pick. Allen did perform well in his lone start last season Week 17 against the Saints, completing 16 of 27 passes for 228 yards and two touchdowns while also adding a rushing score. Despite that performance, the 23-year-old is a long shot to crack Carolina's 53-man roster and may end up on the practice squad instead.