MEMPHIS, Tenn. (AP) — Sam Querrey rallied in the second tiebreaker and took advantage of a faltering John Isner in the third set, winning the Morgan Keegan Championships 6-7 (3), 7-6 (5), 6-3 today.

Isner overpowered his doubles partner and future Davis Cup teammate in the first set, but faltered after taking a 5-2 lead in the second-set tiebreaker. Two points from defeat, Querrey fought back for his third career title and first this season.

As expected in the tallest matchup in ATP history — Isner is 6-foot-9, Querrey 6-6 — both players served well throughout.

Querrey and Isner were set to take on Ross Hutchins and Jordan Kerr in the men's doubles final later in the day.