STUTTGART, Germany - Seven Top 10 players have descended on Stuttgart this week for the only indoor clay court tournament on the Sony Ericsson WTA Tour calendar, the Porsche Tennis Grand Prix. Dinara Safina - one of the most successful players over the last few years but out of action since the Aussie Open, makes her much-anticipated return to the circuit, too.

Safina, who spent more weeks at No.1 last year than anyone else on Tour (26 weeks), retired in the fourth round in Melbourne with a back injury and has been sidelined with the ailment ever since, pulling out of Dubai, Indian Wells and Miami - but now, at the first Premier-level clay court event of the year (and one where she reached the final at a year ago), she is back. As the No.2 seed and after a first round bye she begins against Agnes Szavay or Andrea Petkovic.

Topping the seeds is Caroline Wozniacki, ranked No.2 in the world and making her first appearance since her own injury, rolling her ankle in the semifinals of Charleston last week and having to retire. But the Danish teenager is back and ready for her first European clay court tournament of the year, after a first round bye beginning with either Lucie Safarova or a qualifier.

Svetlana Kuznetsova, Jelena Jankovic, Agnieszka Radwanska, Victoria Azarenka and Samantha Stosur, all ranked in the Top 10 as well, are the No.3 through No.7 seeds. Kuznetsova is the defending champion here, beating Safina in last year's final. Yanina Wickmayer is seeded No.8.

Read about Kuznetsova's triumph in Stuttgart last year right here.

Another slew of Top 20 players - Marion Bartoli, Flavia Pennetta, Li Na, Francesca Schiavone and Shahar Peer - are also in the draw. Several of the players here are riding win streaks - Stosur is coming off a win in Charleston, Pennetta is coming off a win in Marbella and Schiavone just won in Barcelona.

Other notable names in the draw are Justine Henin, a wildcard who could face Wickmayer in the second round; and Ana Ivanovic, who faces Radwanska in the first round. Both Henin and Ivanovic are former world No.1s.

The Porsche Tennis Grand Prix has been a Tour stop since 1978, starting as an indoor hardcourt tournament in Stuttgart, moving to Filderstadt in 1985, moving back to Stuttgart in 2006 and switching to indoor clay last year.