Editing Norm Duke (section)

===2007–08 season===
The [[PBA Bowling Tour: 2007-08 season|2007-08 season]] started slowly for Duke, as he battled illness on top of a series of injuries through the first half. Standing 51st in points and with his Tour exemption in jeopardy, he put together a furious finish by winning two majors in the final five weeks of the season. On February 24, 2008, he won his second career PBA World Championship to lock up a 2008-09 exemption. Then on March 30, he won the [[U.S. Open (bowling)|U.S. Open]] and joined [[Mike Aulby]] and [[Billy Hardwick]] as the only bowlers to ever complete the coveted PBA "Grand Slam," in which a PBA bowler wins the U.S. Open, World Championship, Tournament of Champions, and USBC Masters at least once in a career. He is also one of only nine bowlers in history to complete the PBA career Triple Crown, in which a player wins the PBA's "original" three majors (U.S. Open, Tournament of Champions, and World Championship).