SAN FRANCISCO – During a press conference after the pairings were announced for Thursday's Presidents Cup foursomes matches, Anthony Kim was asked if equipment would be an issue in the alternate-shot format."We are going to use Phil's ball [Callaway Tour ix]," he said. "I have got no problem with it. When I was little, I used all different kinds of golf balls because those were the used golf balls you had to buy in a bag. I'm used to playing with whatever. We'll go out there and have a good time."Kim's normal ball is a Nike ONE Tour.