Results on Tuesday from the eighth day of the $8.5 million WTA and ATP Masters Miami hardcourt tournament (x denotes seeding): Men 4th rd David Ferrer (ESP x3) bt Kei Nishikori (JPN x13) 6-4, 6-2 Jurgen Melzer (AUT) bt Albert Ramos (ESP) 2-6, 6-3, 6-3 Richard Gasquet (FRA x8) bt Nicolas Almagro (ESP x10) 6-7 (3/7), 7-5, 7-6 (7/3) Andy Murray (GBR x2) bt Andreas Seppi (ITA x16) 6-2, 6-4 Tomas Berdych (CZE x4) bt Sam Querrey (USA x17) 6-1, 6-1 Women Quarter-finals Serena Williams (USA x1) bt Li Na (CHN x5) 6-3, 7-6 (7/5)

French Davis Cup skipper Arnaud Clement on Tuesday revealed he would stick with the squad which beat Israel in the first round, leaving Jo-Wilfried Tsonga, Richard Gasquet, Julien Benneteau and Michael Llodra to take on Argentina in their April 5 to 7 quarter-final. Gilles Simon is on stand-by as a replacement, coming in for previous stand-in Jeremy Chardy. Gasquet and Tsonga take the singles berths and Benneteau will partner Llodra in the doubles for the French, who lifted their ninth title in 2001. fbr-gf/cw/ak

Results on Monday from the seventh day of the $8.5 million WTA and ATP Masters Miami hardcourt tournament (x denotes seeding): Men 3rd rd Richard Gasquet (FRA x8) bt Mikhail Youzhny (RUS x28) 6-3, 6-4 Women 4th rd Li Na (CHN x5) bt Garbine Muguruza (ESP) 7-6 (8/6), 6-2 afp

Results on Wednesday from the eighth day of the ATP Masters and WTA BNP Paribas Open (x denotes seeded player): Men 4th rd Jo-Wilfried Tsonga (FRA x8) bt Milos Raonic (CAN x17) 4-6, 7-5, 6-4 Kevin Anderson (RSA) bt Gilles Simon (FRA x13) 6-3, 1-6, 6-4 Tomas Berdych (CZE x6) bt Richard Gasquet (FRA x10) 6-1, 7-5 Roger Federer (SUI x2) bt Stanislas Wawrinka (SUI x18) 6-3, 6-7 (4/7), 7-5 Andy Murray (GBR x3) bt Carlos Berlocq (ARG) 7-6 (7/4), 6-4 Women Quarter-finals