Panthers' Kelvin Benjamin says he got tired mentally during rookie season

Carolina Panthers wideout Kelvin Benjamin was one of the most productive rookie receivers last season, finishing in the top three in receptions and receiving yards. Despite his impressive numbers, however, Benjamin admits that his first NFL season wore him down.

Benjamin told reporters Monday that he started to tire mentally around the midpoint of last season, but was able to stick it out and feels better prepared for 2015.

"I'm working coming out of my breaks on curl routes, my footwork and getting timing down with Cam (Newton)," Benjamin said. 

Benjamin had some issues with drops during his rookie campaign, but was able to stay productive throughout, which bodes well for his second season.