Mickelson left tournament passes for Buchholz and other hospital staff. Mickelson asked Buchholz to take the bag from regular caddie Jim "Bones" Mackay on the 14th tee.
"This man has helped us through some of the toughest times that we've gone through," Mickelson said. "He's the best at what he does." Buchholz wasn't totally inexperienced as a looper. He was working in the pro shop at Westchester Country Club after college in 1984 when he caddied for Allen Miller in the PGA's Westchester Classic.