San Francisco 49ers tight end Delanie Walker, right, breaks away from Baltimore Ravens cornerback Cary Williams during the first half of the NFL Super Bowl XLVII football game Sunday, Feb. 3, 2013, in New Orleans. (AP Photo/Marcio Sanchez)
San Francisco 49ers tight end Delanie Walker, right, breaks away from Baltimore Ravens cornerback Cary Williams during the first half of the NFL Super Bowl XLVII football game Sunday, Feb. 3, 2013, in New Orleans. (AP Photo/Marcio Sanchez)
San Francisco 49ers wide receiver Michael Crabtree (15) makes a catch for a 31-yard touchdown as Baltimore Ravens cornerback Cary Williams (29) and safety Bernard Pollard (31) defend during the second half of the NFL Super Bowl XLVII football game Sunday, Feb. 3, 2013, in New Orleans. (AP Photo/Gerald Herbert)
San Francisco 49ers quarterback Colin Kaepernick (7) runs the ball in for a 15-year touchdown against the Baltimore Ravens during the second half of the NFL Super Bowl XLVII football game Sunday, Feb. 3, 2013, in New Orleans. Ravens' Cary Williams (29) looks on as 49ers wide receiver Michael Crabtree (15) celebrates. (AP Photo/Charlie Riedel)
San Francisco 49ers quarterback Colin Kaepernick (7) runs into the end zone for a 15-yard touchdown run as Baltimore Ravens cornerback Cary Williams (29) and 49ers wide receiver Michael Crabtree (15) watch during the second half of the NFL Super Bowl XLVII football game Sunday, Feb. 3, 2013, in New Orleans. (AP Photo/Gene Puskar)
A referee breaks up Baltimore Ravens cornerback Cary Williams (29) and Washington Redskins wide receiver Leonard Hankerson (85) after a play in the first quarter as the Washington Redskins play the Baltimore Ravens at Fedex Field, Landover, Md., Sunday, December 9, 2012. (Andrew Harnik/The Washington Times)
Washington Redskins wide receiver Pierre Garcon, right, pushes Baltimore Ravens cornerback Cary Williams away during the first half of an NFL football game in Landover, Md., Sunday, Dec. 9, 2012. (AP Photo/Nick Wass)
Philadelphia Eagles wide receiver DeSean Jackson is pulled away by Baltimore Ravens' Arthur Jones as Jackson and Raven's cornerback Cary Williams got into a scuffle during an NFL football game, Sunday, Sept. 16, 2012, in Philadelphia. (AP Photo/The Wilmington News-Journal, Suchat Pederson) NO SALES
Houston Texans wide receiver Jacoby Jones fumbles the ball under pressure from Baltimore Ravens cornerback Cary Williams during the first half of the divisional playoff football game in Baltimore, Sunday, Jan. 15, 2012. (AP Photo/Evan Vucci)
