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Summary John Isner will now face Austrian Jurgen Melzer in the quarter-finals.
Top-seeded John Isner fired 22 aces in a 7-6 (7/3), 6-4 victory over Donald Young on Thursday to reach the quarter-finals of the $1.375 million ATP and WTA Memphis Open.He will now face Austrian Jurgen Melzer, a 2-6, 6-3, 7-6 (7/5) winner over Croatian Ivan Dodig, in the quarter-finals.US wildcard Sam Querrey reached his first quarter-final of the year with a 7-6 (7/4), 6-4 victory over seventh-seeded Kevin Anderson.Querrey, who won the Memphis title in 2010, broke Anderson twice to improve book a quarter-final clash with third-seeded Czech Radek Stepanek, a 4-6, 6-3, 7-6 (7/4) winner over American Ryan Sweeting.Polands Lukasz Kubot reached his first quarter-final since last July in Stuttgart with a 7-6 (7/5), 6-2 victory over Germanys Philipp Petzschner.He will play compatriot Benjamin Becker, a 7-6 (7/4), 6-4 winner over Belgian Xavier Malisse.Olivier Rochus kept the Belgian flag flying with a 6-4, 7-5 victory over American Ryan Harrison. In the quarters Rochus will take on fourth-seeded Canadian Milos Raonic, who beat Ukrainian Sergiy Stakhovsky 6-4, 6-4.The womens semi-final lineup was decided, with fourth-seeded Marina Erakovic of New Zealand holding off Michaella Krajicek of the Netherlands 6-4, 6-7 (2/7), 6-4 to advance.Erakovic trailed 4-3 in the third set, but won three games on the spin to claim victory.I feel Im hitting the ball well, said Erakovic, who next faces Russian Vera Dushevina.Dushevina rallied to beat Frances Stephanie Foretz Gacon 3-6, 6-3, 6-1.Sofia Arvidsson, who won the title in Memphis in 2006 and was runner-up in 2010, reached the final four with a 6-2, 7-6 (9/7) victory over Lesia Tsurenko.Swedens Arvidsson trailed 4-2 in the second but held on to force the tiebreaker, in which she saved a set point before finishing off the victory.Arvidsson next faces Alberta Brianti, who defeated Varvara Lepchenko 7-5, 6-3.
