NEW YORK, NY, USA - Martina Hingis will be among 10 current or former world No.1s competing in this summer's World TeamTennis Pro League, it was confirmed after the marquee player draft was held on Tuesday. The Swiss Miss joins a starry co-ed line-up that collectively boasts some 765 professional tour singles and doubles titles, including 122 Grand Slam championships and six Olympic gold medals.

Hingis returns to the New York Sportimes, the team she helped lead to the WTT title in 2005. Last year the 30-year-old played for Albany-based New York Buzz, which merged with the John McEnroe-led Sportimes earlier this week. Joining Hingis and McEnroe on the team will be current world No.1 Kim Clijsters.

Elsewhere, Serena and Venus Williams will compete for the Washington Kastels and 2010 WTT Female Most Valued Player Lindsay Davenport joins ever-popular Russian Anna Kournikova at the St Louis Aces. US rising star Melanie Oudin makes her WTT debut for the Philadelphia Freedoms, having been drafted as their first pick.

Among the men, Pete Sampras returns to the league for the first time since 2007, representing the Newport Beach Breakers. Bob and Mike Bryan again play for defending champions Kansas City Explorers; Mardy Fish goes into battle for the Sacramento Capitals; John Isner returns to the Boston Lobsters with James Blake; and the Kastles have drafted Sam Querrey. Big-serving Mark Philippoussis makes his competition debut for the Aces.

The WTT Pro League presented by GEICO was co-founded by Billie Jean King in the 1970s. Dates for the marquee player appearances will be announced when the league schedule is released in March. Competition begins on July 4, concluding with the WTT Finals on July 24.