Cardinals' Bruce Arians: WR John Brown carries sickle-cell trait

A blood test Thursday revealed that Arizona Cardinals wide receiver John Brown carries the sickle-cell trait and has been listed as doubtful for Sunday's game, coach Bruce Arians said Friday. Brown experienced leg pain before Monday night's win over the New York Jets and was diagnosed with sore hamstrings after the game. But an MRI this week didn't reveal any issues with his hamstrings, which led to the blood test. "We're investigating on how to help him get better as fast as possible," Arians said.