Former world No. 1 Justine Henin reached the semifinals in her Grand Slam comeback, beating Nadia Petrova 7-6 (3), 7-5 Tuesday to take out the last seeded player in her half of the Australian Open draw. The 27-year-old Henin, unranked and playing on a wild-card entry at Melbourne Park after coming out of retirement this month, went down a break in the second set before winning seven of the next nine games to finish off No. 19-seeded Petrova.
In another women's quarterfinal, China's Jie Zheng defeated Russia's Maria Kirilenko 6-1, 6-3; the other two quarters, each featuring a Williams sister, are Wednesday. In later men's quarterfinals, seventh-seeded American Andy Roddick is facing No. 14 Marin Cilic, and No. 2 seed Rafael Nadal playing fifth-seeded Briton Andy Murray. Check scores here.