Sports briefs

TRACK AND FIELD

Bolt, Gatlin to duel again

Usain Bolt and Justin Gatlin set up the sequel to their world championship sprint showdown on Wednesday, both winning their semifinal heats in the 200 meters.

After Bolt edged Gatlin by .01 second in Sunday's 100 final, he will be seeking his record 10th world title overall on Thursday at the Bird's Nest in Beijing.

"I'm looking forward to it," Bolt said. "This is my favorite event." Bolt was grinning widely after crossing in 19.95 seconds. In the previous semifinal heat, Gatlin, unbeaten over two years in the 200, ran 19.87 seconds.

SOCCER

Cosmos, Ottawa draw

The Cosmos extended their unbeaten streak to seven matches as they were held to a scoreless draw by host Ottawa in a North American Soccer League showdown. The Cosmos (4-4-1) trail Ottawa (6-2-1) by four points in the Fall Season standings.

Red Bulls fall to Chicago

Kennedy Igboananike broke a tie in the 73rd minute with his second goal of the game and the Chicago Fire beat the Red Bulls, 3-2, to end New York's six-game undefeated streak. The Red Bulls (11-7-6) have not won in Chicago since 2005.

TENNIS

Radwanska advances

Agnieszka Radwanska of Poland beat France's Alizé Cornet, 6-4, 6-2, to advance to the Connecticut Open quarterfinals in New Haven. Caroline Wozniacki of Denmark outlasted Italian qualifier Roberta Vinci, 6-4, 6-7 (3-7), 7-6 (9-7).

GOLF

Day tweaks his back

PGA champion Jason Day withdrew from the pro-am at The Barclays in Edison, New Jersey after tweaking his back. Day was moving an item under his motor coach on Tuesday night when he suffered the injury. -- AP