Denver Broncos quarterbacks coach Greg Knapp, center, talks with starter Peyton Manning, right, and backup Brock Osweiler during practice for Super Bowl 50 on Wednesday, Feb. 3, 2016, in Stanford, Calif.
Denver Broncos quarterbacks coach Greg Knapp, center, talks with starter Peyton Manning, right, and backup Brock Osweiler during practice for Super Bowl 50 on Wednesday, Feb. 3, 2016, in Stanford, Calif. Jeff Chiu The Associated Press
Denver Broncos quarterbacks coach Greg Knapp, center, talks with starter Peyton Manning, right, and backup Brock Osweiler during practice for Super Bowl 50 on Wednesday, Feb. 3, 2016, in Stanford, Calif. Jeff Chiu The Associated Press