David Ferrer and Janko Tipsarevic head the field for the 2012 Swiss Open (also known as ATP Gstaad).
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It's been a while since Ferrer has competed in Gstaad. He played the event back in 2004 and 2005 but didn't get further than the second round. Expect the world number five to be one of the major contenders for the title this week.
Tipsarevic is also making a surprise appearance in Sweden. The Serb doesn't often play the full European clay-court circuit in July but he's one of those players who produces his best tennis when he's been competing a lot and feels sharp and so he feels competition is the best way to prepare for the Olympics.
Marcel Granollers was a surprise champion in Gstaad last year and he's surprised a lot of people by breaking into the world's top 25 after his run to the fourth round at the French Open. He won an all Spanish final with Fernando Verdasco last year but it's hard to see him taking someone like Ferrer down in the latter stages.
Roger Federer has not returned to Gstaad since his triumph back in 2004 and since then Stanislas Wawrinka has been flying the flag for the home nation. Wawrinka came close to keeping the title in Switzerland back in 2005, losing to Gaston Gaudio in the final but since then he hasn't been able to put himself in contention, losing to Granollers in the quarter-finals last year.