NEW HAVEN, Conn. -- Third-seeded Jennifer Capriati advanced to the finals of the Pilot Pen when Amelie Mauresmo retired due to injury in their match Friday night.

Capriati was up 6-3, 3-1 when the second-seeded Mauresmo withdrew. She called for the trainer before the start of their last game and appeared to be concerned about her right arm.

Mauresmo, seeded fifth in next week's U.S. Open, has struggled with injuries this year. She missed four months with an inflamed right knee and withdrew from Wimbledon with a right rib muscle injury.

Capriati, who will play top-seeded Lindsay Davenport in Saturday's final in the hardcourt event, said she could understand Mauresmo's decision.

"She wants to be ready for the U.S. Open," Capriati said of the year's last major that gets under way Monday.

Earlier Friday, Venus Williams withdrew from the U.S. Open because of a chronic stomach muscle strain.

Capriati dominated Mauresmo throughout the 48-minute match, scoring repeatedly with deep baseline winners and a solid service game.

"I really wanted to move her around and not let her get in a groove," Capriati said.

Davenport beat Elena Dementieva, 6-4, 6-2 in sweltering conditions in the afternoon, reaching the final of the U.S. Open tuneup for the fourth time in five years. She lost every time to four-time champion Venus Williams.

"It's great to have a lot of success here. It would be nice to actually go on and win the tournament one time," Davenport said.

Davenport is seeded third at next week's Open, the site of her first Grand Slam win in 1998. With both Williams sisters out of the Open -- defending champ Serena Williams is recovering from knee surgery -- Davenport expects a wide open competition.

"I do think it's a shame for the fans. Serena and Venus have been dominating the slams the last few years," Davenport said. "It's always exciting, especially for the New York crowd, to have at least one of them there. Now both of them are gone."

Davenport controlled the match from the opening serve, breaking Dementieva twice in each set.

Davenport has lost serve just once in the last two matches, scoring on 25 of 30 first serves in the victory.

Dementieva struggled with her serve, allowing Davenport to pounce on weaker second serves and score easily with pinpoint winners off both her forehand and backhand.

The temperature on the court reached 94 degrees, and Davenport was playing her first day match in the steamy conditions. Both players frequently toweled off to keep their hands dry.

"I don't remember too many times where I actually sweated like that and had problems holding on," Davenport said. "Sometimes in this heat, it's tough to keep balls in. They fly a little bit."

The win avenged Davenport's last meeting with Dementieva -- a three-set loss in the Amelia Island final in April.

"When I played her in April, she was just on fire," Davenport said. "We'd have great baseline rallies and she would hit a lot of winners. Today she was just a little off."