**FILE** Denver Broncos quarterback Tim Tebow (15) greets New England Patriots quarterback Tom Brady (12) after an NFL football game, Sunday, Dec. 18, 2011, in Denver. (AP Photo/Barry Gutierrez)
**FILE** Washington Redskins quarterbacks Donovan McNabb (5) and Rex Grossman (8) look on during practice at the NFL football team's training camp, Sunday, Aug. 15, 2010, at Redskins Park in Ashburn, Va. (AP Photo/Nick Wass)
Washington Redskins quarterback Robert Griffin III (10) speaks to reporters at a press conference following a NFL football organized team activity at Redskins Park, Ashburn, Va., Thursday, June 6, 2013. (Andrew Harnik/The Washington Times)
Washington Redskins quarterback Robert Griffin III (10) speaks to reporters at a press conference following a NFL football organized team activity at Redskins Park, Ashburn, Va., Thursday, June 6, 2013. (Andrew Harnik/The Washington Times)
Washington Redskins quarterback Robert Griffin III (10) speaks to reporters at a press conference following a NFL football organized team activity at Redskins Park, Ashburn, Va., Thursday, June 6, 2013. (Andrew Harnik/The Washington Times)
Washington Redskins quarterback Robert Griffin III (10) speaks to reporters at a press conference following a NFL football organized team activity at Redskins Park, Ashburn, Va., Thursday, June 6, 2013. (Andrew Harnik/The Washington Times)
Washington Redskins quarterback Robert Griffin III (10) speaks to reporters at a press conference following a NFL football organized team activity at Redskins Park, Ashburn, Va., Thursday, June 6, 2013. (Andrew Harnik/The Washington Times)
Washington Redskins quarterback Robert Griffin III (10) speaks to reporters at a press conference following a NFL football organized team activity at Redskins Park, Ashburn, Va., Thursday, June 6, 2013. (Andrew Harnik/The Washington Times)
Washington Redskins quarterback Robert Griffin III (10) speaks to reporters at a press conference following a NFL football organized team activity at Redskins Park, Ashburn, Va., Thursday, June 6, 2013. (Andrew Harnik/The Washington Times)
Washington Redskins quarterback Robert Griffin III (10), center, heads to a press conference following a NFL football organized team activity at Redskins Park, Ashburn, Va., Thursday, June 6, 2013. (Andrew Harnik/The Washington Times)
Washington Redskins quarterback Robert Griffin III (10) smiles after being pulled away from signing autographs after sneaking back to spend more time with fans following a NFL football organized team activity at Redskins Park, Ashburn, Va., Thursday, June 6, 2013. (Andrew Harnik/The Washington Times)
Washington Redskins wide receiver Santana Moss (89) signs autographs following a NFL football organized team activity at Redskins Park, Ashburn, Va., Thursday, June 6, 2013. (Andrew Harnik/The Washington Times)
Washington Redskins quarterback Robert Griffin III (10) signs an autograph for Jordan Johnson, center, following a NFL football organized team activity at Redskins Park, Ashburn, Va., Thursday, June 6, 2013. (Andrew Harnik/The Washington Times)
Washington Redskins strong safety Reed Doughty (37) signs autographs following a NFL football organized team activity at Redskins Park, Ashburn, Va., Thursday, June 6, 2013. (Andrew Harnik/The Washington Times)
Washington Redskins strong safety Reed Doughty (37) signs autographs following a NFL football organized team activity at Redskins Park, Ashburn, Va., Thursday, June 6, 2013. (Andrew Harnik/The Washington Times)
Washington Redskins strong safety Reed Doughty (37) leaves the field following a NFL football organized team activity at Redskins Park, Ashburn, Va., Thursday, June 6, 2013. (Andrew Harnik/The Washington Times)
Washington Redskins outside linebacker Brian Orakpo (98) speaks to reporters following a NFL football organized team activity at Redskins Park, Ashburn, Va., Thursday, June 6, 2013. (Andrew Harnik/The Washington Times)
Washington Redskins outside linebacker Brian Orakpo (98) leaves the field following a NFL football organized team activity at Redskins Park, Ashburn, Va., Thursday, June 6, 2013. (Andrew Harnik/The Washington Times)