What's Ailing Pro Golfer Phil Mickelson?

Pro golfer Phil Mickelson announced last week that he has been diagnosed with psoriatic arthritis, a potentially debilitating joint condition that left him unable to walk, just days before the U.S. Open. Mickelson said in Tuesday's pre-PGA Championship press conference that after two weeks of treatment, he feels back to "100 percent." And despite a rocky start to his U.S. PGA Championship bid, Mickelson's improvement in the final round of the tournament on Sunday seemed to lend credence to...Full Story