"A:  Clowney endured a sports hernia and a concussion even before he got into his rookie season, then suffered a fluke – and shockingly serious – meniscus injury to his left knee in the season opener against Washington. The net result would be four game appearances, two starts and all of seven tackles before the Texans sent him back to the operating room for microfracture surgery, needed to repair damage to his articular cartilage. The recovery requires tremendous personal discipline, some cutting-edge rehab methods (blood restriction flow therapy) and a bit of luck, but Clowney appears to have come through the ordeal swimmingly.     Although he presumably won't be ready for the start of training camp, his every step – however halting – will require instant analysis. ""Hard Knocks"" will probably assign a cameraman just to him."
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