Teens Chang, Capriati Win 2nd Matches : Tennis: Youth is served at the U.S. Open, as one-time phenom Aaron Krickstein also advances.

Teen-agers Jennifer Capriati and Michael Chang won second-round matches at the U.S. Open today, but both had to work for it.

Capriati, at 14 the youngest player in the tournament, got off to a rocky start but righted herself to defeat Canadian Patricia Hy, 6-3, 6-1.

Capriati lost three of the first four games before reeling off nine consecutive games to capture the first set and take a 4-0 lead in the second.

After Hy held serve in the fifth game, Capriati took the next two games to complete the 58-minute romp.

Chang, of Placentia, who won the French Open last year at the age of 17, beat former teen-age phenom Jimmy Arias, 7-6 (7-3), 6-3, 6-2.

Aaron Krickstein, the youngest male ever to win a professional tournament when he captured one in Tel Aviv several years ago, eliminated Jason Stoltenberg, 6-4, 6-2, 6-4.

Brad Gilbert, the No. 8 seed, also grabbed a third-round berth by defeating Rick Leach, 7-6 (7-4), 6-4, 6-2.

In other early women’s matches today, No. 6 seed Arantxa Sanchez Vicario defeated Caroline Kuhlman, 6-0, 6-3, and No. 10 Conchita Martinez eliminated Csilla Bartos, 6-0, 6-4.

Chang, fighting a season-long slump in which he claimed his first tournament title in Toronto just last month, raced out to a 5-1 first set lead only to let Arias off the hook.

Arias, taking a page out of Chang’s book, clawed back to 5-5 and the opening set proceeded to a tiebreak.

“For some reason when it was 5-1 I was already thinking about the second set,” Chang said, explaining his early lapse.

Chang, seizing the momentum he had surrendered, pulled out the tiebreak 7-3 and the speedy teen began to show some of the tenacity that won over so many fans during his Paris campaign last year.

The 11th seed dominated the final two sets, coming up with a pair of service breaks in the second and three in the third, though Arias made him work for every point.

Chang admitted he was guilty of thinking too far ahead in his second round match.

“I’d really like to play Andre (Agassi) again in a Grand Slam,” Chang said of his prospective quarter-final opponent.

Krickstein, now 23, is trying to duplicate his feat of last year when he reached the semifinals at the National Tennis Center.

Krickstein, whose big forehand and strong base-line game helped him move as high as No. 7 in the world rankings, has a history of injuries. And today, he injured his right shoulder in the third set.