Denver Broncos quarterback Peyton Manning talks to the media following an NFL football organized team activity, Wednesday, May 28, 2014, in Englewood, Colo. (AP Photo/Jack Dempsey)
Denver Broncos quarterback Peyton Manning talks to the media following an NFL football organized team activity, Wednesday, May 28, 2014, in Englewood, Colo. (AP Photo/Jack Dempsey)
Denver Broncos quarterback Peyton Manning stretches during an NFL football organized team activity, Wednesday, May 28, 2014, in Englewood, Colo., (AP Photo/Jack Dempsey)
San Francisco 49ers' Shayne Skov makes a catch during an NFL football organized team activity, Wednesday, May 28, 2014, in Santa Clara, Calif. (AP Photo/Marcio Jose Sanchez)
San Francisco 49ers' Jimmie Ward jogs during an NFL football organized team activity Wednesday, May 28, 2014, in Santa Clara, Calif. (AP Photo/Marcio Jose Sanchez)
San Francisco 49ers' Patrick Willis (52) goes through drills during an NFL football organized team activity, Wednesday, May 28, 2014, in Santa Clara, Calif. (AP Photo/Marcio Jose Sanchez)
San Francisco 49ers' Garrett Celek makes a catch during an NFL football organized team activity Wednesday, May 28, 2014, in Santa Clara, Calif. (AP Photo/Marcio Jose Sanchez)
San Francisco 49ers' Shayne Skov, right, and Michael Wihoite go through drills during an NFL football organized team activity Wednesday, May 28, 2014, in Santa Clara, Calif. (AP Photo/Marcio Jose Sanchez)
San Francisco 49ers' Aldon Smith goes through drills during an NFL football organized team activity Wednesday, May 28, 2014, in Santa Clara, Calif. (AP Photo/Marcio Jose Sanchez)
San Francisco 49ers quarterback Colin Kaepernick prepares to throw as coach Jim Harbaugh watches during an NFL football organized team activity, Wednesday, May 28, 2014, in Santa Clara, Calif. (AP Photo/Marcio Jose Sanchez)
San Francisco 49ers wide receiver Michael Crabtree runs after a reception during an NFL football organized team activity on Wednesday, May 28, 2014, in Santa Clara, Calif. (AP Photo/Marcio Jose Sanchez)
San Francisco 49ers quarterback Colin Kaepernick, center, jokes with teammate Michael Crabtree (15) during an NFL football organized team activity, Wednesday, May 28, 2014, in Santa Clara, Calif. (AP Photo/Marcio Jose Sanchez)
Denver Broncos quarterback Peyton manning throws during an NFL football organized team activity, Wednesday, May 28, 2014, in Englewood, Colo., (AP Photo/Jack Dempsey)
Denver Broncos' Von Miller stretches during an NFL football organized team activity, Wednesday, May 28, 2014, in Englewood, Colo. (AP Photo/Jack Dempsey)