San Francisco 49ers tight end Vernon Davis might be a 6-foot-3 NFL star with excellent speed and soft hands, but can he throw draw weight to the button? Can he play the chip-and-lie? Actually, Davis shows promise as a curler. He agreed to try an evening of chess on ice at the San Francisco Bay Area Curling Club recently, as part of a bid by the club to boost U.S. interest in the sport before the Vancouver Olympics. Davis reportedly enjoyed the game so much he had to be dragged away from the rink late to get enough sleep for the next morning’s 49ers practice. “I didn’t think it would be this much fun,” he said. Another convert.