Originally Posted by StanleySpadowski
There are a few, most notably Ryan Clark, who do not play games at altitude...i.e. Denver.
Yeah, I understand that and can see that being somewhat of a problem if you're the Broncos or play in the AFC West. He's played competitive sports for a while though, presumably without any negative effects, so I doubt this will affect him that much in the NFL. It' s just weird for a team to use this as an excuse given there's NFL players out there who are playing with sickle cell trait (and probably some that don't even know it) that are doing just fine.