Nnamdi Asomugha signing and Carlos Rogers guaranteed salary

Tuesday afternoon, reports came out that the San Francisco 49ers finally came to terms with Nnamdi Asomugha on a one year contract. The deal includes a $1.35 million base salary and $1.65 million in potential incentives. None of it is guaranteed, so it remains the ultimate "prove it" contract.

Speaking of proving it, the 49ers have quite the run of cornerbacks with the addition of Asomugha. Nnamdi joins Carlos Rogers, Tarell Brown, Chris Culliver, Perrish Cox and Tramaine Brock in what has become a busy group of cornerbacks. Jim Harbaugh enjoys using the phrase "iron sharpens iron", and that could not be exemplified more accurately than with the 49ers cornerback position.

Heading into the offseason, we had discussed Carlos Rogers' candidacy as a potential salary cap casualty. There were no indications this would happen, but with his sizeable salary and the 49ers relatively limited cap space, anything was possible. Once the Nnamdi rumors began a couple weeks back, the playing time discussion has often focused on either Chris Culliver moving to free safety or the 49ers releasing Carlos Rogers, potentially as a June 1 cut.

At this point, the odds are incredibly high Rogers will stick around all year. The odds may have been high before, but April 1 brought us further confirmation. As Jason Hurley pointed out in his Rogers cap casualty hypothetical, Rogers 2013 base salary of $5.5 million became guaranteed on April Fools' Day. This guarantees nothing past 2013, but for the purposes of this season, it would seem that he is set to stick around.