NORCROSS, Ga. (AP) -- No. 2 seed Kevin Anderson of South Africa, Yen-Hsun Lu of Taiwan and Luxembourg's Gilles Muller won second-round matches in the Atlanta Tennis Championships on Wednesday.
Third seed John Isner faced his friend and doubles partner James Blake in the late match at the Racquet Club of the South.
Anderson credited his improving play near the net with helping him beat Michael Russell 6-1, 7-5. Muller used 15 aces to defeat local favorite Robby Ginepri of nearby Kennesaw 7-6 (6), 2-6, 6-2.
Lu held off qualifier Marinko Matosevic of Australia 3-6, 6-1, 6-2.
Mardy Fish, the top seed and defending champion Nicolas Mahut of France. Malisse plays Ryan Harrison.