From Rotoworld, was the richest rookie contract in the history of the NFL:
Six-year, $61 million contract. The deal contains $32 million guaranteed, including all six years' base salaries and a $19.9 million option bonus in the second year. Also available is a onetime performance bonus of $2.8 million. Another $7 million is available through incentives. Russell earned a $3 million escalator for 2010 by taking over 45% of the snaps in 2008. 2009: $460,000, 2010: $550,000 (+ $3 million escalator), 2011: $650,000, 2012: $6.69672 million, 2013: Free Agent
So if they brought in someone to legitimately compete with him next season, he could potentially be sitting on the bench making $221k a game.