DALLAS, FEB. 6 -- Former Southwest Conference champion Cletus Clark upset tired world champion Greg Foster tonight in the 55-meter hurdles of the Dallas Morning News Indoor Games.

Clark, who had never defeated Foster in a final, clocked 7.13 seconds to 7.14 for the defending champion, who had easily won the Millrose Games on Friday night in 7.07.

The renewal of the Foster-Renaldo Nehemiah duel was dashed in the trials when Nehemiah finished fourth in his heat in a slow 7.38, well off his world best of 6.82.

"Somebody spiked my hand and I bumped two hurdles," Nehemiah said. "That was it for me."

Clark was jubilant in his first finals victory over Foster.

"It shows me that all the hard work I've been doing has finally paid off," said Clark, a former University of Houston star. "I've been doing a lot of sprint work at school with Carl Lewis. I've been working with the sprinters and it helped."

Foster said he was dog tired after the flight from New York City this morning.

"I just didn't concentrate well and then I made a stupid mistake," he said. "I got out of the blocks well, then I relaxed and just went through the motions.

"It was a long trip and I didn't get much sleep last night, but that should be no excuse," he added. "I relaxed when I should have been pushing it. It's going to be a long season to the Olympics, and it's going to be hard to get motivated."

Foster was ranked No. 1 in the world last year and won the gold medal in the World Outdoor Championships in 1987.

Roger Kingdom, the 1984 Olympic champion, was fifth in 7.35.

Jackie Joyner-Kersee, The Associated Press' Female Athlete of the Year for 1987, won the long jump with an effort of 21 feet 7 1/4 inches, well off her American record of 22-10 1/2.

Randy Barnes became the fifth longest shot putter in American history and second best indoors with an effort of 71 feet 3 inches. George Woods set the indoor record of 72-3 in 1974; the meet record was 69-9 1/2, set by Kevin Atkins in 1983.