AUGUSTA, Ga. — Phil Mickelson's wife, Amy, and their three children have arrived in Augusta, and his kids will caddie for him in Wednesday's Par 3 Contest, according to T.R. Reinman, Mickelson's spokesman."I'm hoping they get here for [Wednesday's] Par 3," Mickelson said on Tuesday, "because it's a really a special time for me to have my kids caddie for me. We have pictures taken and we have collages and we put them up at home, and I love looking back at how little they were."Amy, who is continuing to undergo treatment for breast cancer, which was diagnosed shortly after last year's Masters, will be in town but is not expected to come to the course this week.