Chicago Bears rookie receiver Luther Burden has learned quickly that head coach Ben Johnson has a high standard.

LAKE FOREST, Ill. -- After spending more than two months sidelined with a hamstring injury that he sustained during OTAs, Chicago Bears rookie wide receiver Luther Burden III wasn't looking to ease his way into practice once he was cleared for training camp on July 28.

Burden, a second-round pick, missed a lot of practice in the offseason and the first week of training camp due to injury.