Heisman winner Lamar Jackson's size concerns NFL front offices, scouts

Heisman Trophy winner Lamar Jackson has impressed NFL front offices and scouts with his talent, but some have expressed concerns with the Louisville quarterback's 6-foot-3, 205-pound frame in regard to his professional future.

"I love the player," one league source told ESPN. "There's not a player I'd rather watch in college football. But he's so skinny."

Jackson was compared to Minnesota Vikings quarterback Teddy Bridgewater, who suffered a noncontact knee injury during practice over the summer that ended his season and put his NFL career in jeopardy. Bridgewater is listed at 6-2, 215 pounds.

"I love the player. He'll play in the NFL," the source said of Jackson. "I just don't know what he'll be. He could be a slash, he could be a quarterback, but I'm not sure on that body type."

Jackson won Louisville's first Heisman on Saturday, finishing ahead of Clemson quarterback Deshaun Watson. The Cardinals quarterback is only a sophomore and will have another college season to potentially fill out and improve his draft stock in the minds of NFL scouts.