Argentina's fourth-seeded Juan Monaco outlasted US second seed John Insner for a 6-2 3-6 6-3 triumph this morning in the final of the ATP US men's clay championship.
Monaco, ranked 16th in the world, captured his fifth career ATP title and his second of the year after a February crown at Vina del Mar in Chile.
Before that, he had not won an ATP title since 2007.
Despite the defeat, Isner will become the top-ranked American player in the world later today when he passes countryman Mardy
Fish and moves up one spot into ninth in the ATP rankings.