Andre Agassi confirmed rumors that he and fellow tennis star Steffi Graf are romantically linked. He said the relationship “has probably come on a little quicker than anticipated . . . Sometimes life can throw you some curves. It’s nice when good curves come along. She’s a good one,” he told Las Vegas’s Channel 8 on Thursday. Agassi, 29, and Graf, 30, have been seen around Andre’s hometown together, most recently at Saturday’s De La Hoya-Trinidad boxing fight.