From one All-Pro to another, Texans receiver Andre Johnson calls Raiders corner Nnamdi Asomugha "the toughest DB I've ever faced," per Paul Kuharsky of the ESPN.com AFC South Blog. As Kuharsky notes, Johnson also explains that the best way to beat the long, rangy Asomugha (6-2, 210) is to get him running, which generally presents problems for bigger corners.
Anybody who follows the NFL shouldn't be surprised to hear No. 80's praise. Asomugha is underappreciated by the public because he plays in Oakland and doesn't post gaudy interception numbers, but the latter is simply because opposing teams don't throw at him (he was targeted only 27 times in 2008). I also remember Kevin Walter saying in an interview for Texans TV a year or two ago that Asomugha is the best corner he's faced in his career.
Johnson only had two catches for 19 yards against Asomugha and the Raiders in a late-season loss in 2008. He'll get another crack at the talented corner this season when Oakland visits Reliant Stadium in Week 4.