PONTE VEDRA BEACH, Fla. — The air-conditioned medical trailer behind the 77,000-square-foot Mediterranean-revival clubhouse has two beds to treat ailing fans, and it's been a busy place this week thanks to stifling heat and humidity at TPC Sawgrass for the 2009 Players Championship."Usually there's a bit of breeze after about 3 in the afternoon, but not today," said Kevin P. Murphy M.D., who was on duty beside the island 17th green Saturday, when temperatures hit 94 degrees, keeping medical personnel hopping. "That's good for the golfers, but not for the spectators."There's no shade on 17, and fans camp out there all day and drink beer.After 26 spectators were treated for heat-related injuries Friday, Murphy said he'd counted around 15 Saturday. Misters in the stands kept some fans cool, and one fan carried a blue spray bottle with a propeller to mist himself."I got it at Disney World for top dollar," he said. "Stuart Allenby wanted it."Stuart Appleby? Robert Allenby? When it's this hot, who cares? Doctors typically drive overheated patrons from the course to the trailer before treatment, but not always."We put an IV in someone right on the grounds just a minute ago," Murphy said.