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Paul Sakuma, Associated Press
San Francisco 49ers' Kyle Williams (10) fumbles as he is hit by New York Giants' Jacquian Williams (57) during overtime of the NFC Championship NFL football game Sunday, Jan. 22, 2012, in San Francisco. The Giants won 20-17 to advance to Super Bowl XLVI.

SANTA CLARA, Calif. — Kyle Williams is ignoring the barrage of hateful, hurtful, even threatening comments he has received in the aftermath of his ill-timed fumble that cost the San Francisco 49ers the NFC championship game against New York.

Williams says he takes full responsibility for his fumble on a punt return in overtime of a 20-17 loss to the Giants on Sunday night that set up Lawrence Tynes' winning field goal, calling the moment "painful."

Williams' teammates are on his side, too, along with others from around the NFL who have called in support after San Francisco' season ended.

Kicker David Akers took to Twitter on Monday asking people to stop with the harsh remarks directed toward his teammate.