Mickelson suffering from psoriatic arthritis

MASTERS champion Phil Mickelson last night revealed he has started treatment for a condition known as psoriatic arthritis.

The 40-year-old world number two, who will start favourite on Thursday in the USPGA Championship at Whistling Straits, said he had been suffering with “intense pain” in some joints and tendons for the past eight weeks, having woken up five days before the US Open at Pebble Beach and been unable to walk.

“It progressively got worse, and to ultimately where I had to figure something that was wrong and had to go get it checked,” Mickelson said.