Asomugha made three Pro Bowls and was a two-time first-team All-Pro during his eight seasons with the Raiders.
Asomugha made three Pro Bowls and was a two-time first-team All-Pro during his eight seasons with the Raiders.
Andy Lyons/Getty Images

ALAMEDA, Calif. (AP) Less than three years after being one of the most prized free agents on the open market, Nnamdi Asomugha' NFL career is over.

Asomugha formally announced his retirement on Friday at the Oakland Raiders' headquarters, ending his 11-year career at the place he had his most success.

Asomugha made three Pro Bowls and was a two-time first-team All-Pro during his eight seasons with the Raiders when he was considered one of the league's top cover cornerbacks.

But his career quickly fizzled after signing a $60 million, five-year contract with Philadelphia in the summer of 2011. He was cut after two years with the Eagles and played just three games this season for San Francisco before being released in November.

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