PITTSBURGH--Widely regarded as one of the greatest players of not only his generation but in the history of the National Football League, Pitt's Aaron Donald has called it a career.Donald was one of only six unanimous picks for the NFL 2010s All-Decade Team..Despite facing an array of blocking schemes--some legal and some that employed good old-fashioned holding--he compiled an astounding 111 sacks.Donald led the Rams to two Super Bowls and clinched his team's victory in Super Bowl LVI when he smothered Cincinnati's Joe Burrow, forcing the final incompletion in a 23-20 Los Angeles victory.The recognition came after Donald made a seven-figure financial commitment to the Pitt Football Championship Fund, which serves the program in such key areas as facility improvement, recruiting, technology and student-athlete development.The former Pitt star announced his retirement on Friday, concluding one of the most decorated and dominant careers the game has ever witnessed.Selected by the Rams in the first round of the 2014 NFL Draft (13th overall), Donald more than delivered on the lofty expectations placed on a top draft choice.