US OPEN - DAY 9

MEN'S SINGLES 4TH ROUND

• Rafael Nadal (ESP) beats Gael Monfils (FRA) 6-7, 6-3, 6-1, 6-3.
• Marin Cilic (CRO) beats Andy Murray (GBR) 7-5, 6-2, 6-2.
• Fernando Gonzalez (CHI) beats Jo-Wilfried Tsonga (FRA) 3-6, 6-3, 7-6, 6-4.
• Juan Martin Del Potro (ARG) beats Juan Carlos Ferrero (ESP) 6-3, 6-3, 6-3.

WOMEN'S SINGLES QUATERFINALS

• Kil Clijsters (BEL) beats Na Li (CHN) 6-2, 6-4.
• Serena Williams (USA) beats Flavia Pennetta (ITA) 6-4, 6-3.

MEN'S DOUBLES QUATERFINALS

• Bob Bryan & Mike Bryan beats Carsten Ball & Chris Guccione 6-4, 7-6.
• Lukas Dlouchy & Leander Paes beats Wesley Moodie & Dick Norman 6-3, 5-7, 6-4.
• Mahesh Bhupathi & Mark Knowles beats Ivan Ljubicic & Michael Llodra 6-4, 4-6, 7-6.
• Max Mirnyi & Andy Ram beats Daniel Nestor & Nenad Zimonjic 6-7, 6-4, 6-0.

WOMEN'S DOUBLES QUATERFINALS

• Samantha Stosur & Rennae Stubbs beats Bethanie Mattek-Sands & Nadia Petrova 6-2, 6-3.
• Alisa Kleybanova & Ekaterina Makarova beats Maria Kirilenko & Elena Vesnina 6-3, 2-6, 6-4.