Argentina\'s Juan Martin del Potro claimed the Open 13 tennis event in Marseille, France, Sunday with a straight-set win over Michael Llodra. The fourth-seeded Del Potro, who also reached the finals in last week\'s ATP Tour tournament in Rotterdam, dispatched the Frenchman 6-4, 6-4, capturing his first title of 2012. The Argentine won won 36-of-40 first-serve points against Llodra and didn\'t face a single break point against his own serve en route to the victory, which was a rematch from the first round of the Rotterdam event. Del Potro fell to Roger Federer in the Netherlands finals. Del Potro improved to 10-5 in career finals while Llodra slipped to a 5-5.