MEMPHIS, Tenn. — Four months ago, Sam Querrey thought his tennis career might be over. Yesterday, he took it to a new level.

The only drawback? He had to beat his best friend, doubles partner and future Davis Cup teammate John Isner, in the Morgan Keegan Championships to do it.

"I'm sure we'll joke about it later," Querrey said after his 6-7 (3), 7-6 (5), 6-3 win.

Querrey was seriously injured in October in Bangkok after falling through a glass coffee table and suffering a cut to a muscle in his forearm that required 25 stitches to repair.

Querrey rallied from three points down in the second tiebreaker to start a run. Two points from defeat, Querrey won five straight points, then broke Isner twice in the third set for his third career title and first this season.

"This is the first match we've played," Querrey said. "Hopefully over the next 10 years we'll play 10 or 15 times. I'm sure I'll win some and he'll win some."

Querrey and Isner went on to beat Ross Hutchins and Jordan Kerr to win the men's doubles final, 6-4, 6-4, yesterday evening.

U.S. captain Patrick McEnroe named Querrey and his running buddy Isner to the Davis Cup team that will play in Serbia next month.

ELSEWHERE

Copa Telmex: Juan Carlos Ferrero of Spain defeated compatriot David Ferrer in the final, 5-7, 6-4, 6-3, at Buenos Aires, Argentina. The second-seeded Ferrero saved seven of 11 break points he faced against the top-seeded Ferrer.

Open 13: Unseeded Michael Llodra won his fourth career title when he beat eighth-seeded Julien Benneteau, 6-3, 6-4, in an all-French final at Marseille, France. Llodra took his first title since beating Robin Soderling at Rotterdam two years ago.

Copa Colsanitas: Hometown favorite Mariana Duque Marino beat fifth-seeded Angelique Kerber of Germany, 6-4 6-3, to win the clay court tournament at Bogota, Columbia. It was her first WTA title.

Federer out: Roger Federer withdrew yesterday from the Dubai Championships because of a lung infection. The $2 million event starts today.