April 28 (Gracenote) - Results from the Stuttgart Grand Prix Women's Singles Quarterfinal matches on Friday 4-Simona Halep (Romania) beat Anastasija Sevastova (Latvia) 6-3 6-1 Laura Siegemund (Germany) beat 2-Karolina Pliskova (Czech Republic) 7-6(3) 5-7 6-3 Kristina Mladenovic (France) beat Carla Suarez Navarro (Spain) 6-3 6-2 Maria Sharapova (Russia) beat Anett Kontaveit (Estonia) 6-3 6-4
April 28 (Gracenote) - Results from the Istanbul Cup Women's Singles Quarterfinal matches on Friday 1-Elina Svitolina (Ukraine) beat 5-Sorana Cirstea (Romania) 6-4 6-4 6-Elise Mertens (Belgium) beat Cagla Buyukakcay (Turkey) 6-4 4-6 6-2 Jana Cepelova (Slovakia) beat Dayana Yastremska (Ukraine) 2-6 7-6(4) 6-4 3-Irina Begu (Romania) beat Basak Eraydin (Turkey) 2-6 7-6(5) 6-1
BARCELONA, April 28 Rafael Nadal survived a difficult start to see off Chung Hyeon of South Korea in straight sets and reach the semi-finals of the Barcelona Open for a 10th time on Friday.
April 28 (Gracenote) - Results from the Barcelona Open Men's Singles Quarterfinal matches on Friday Horacio Zeballos (Argentina) beat Karen Khachanov (Russia) 6-4 6-1 3-Rafa Nadal (Spain) beat Chung Hyeon (South Korea) 7-6(1) 6-2 1-Andy Murray (Britain) beat 10-Albert Ramos (Spain) 2-6 6-4 7-6(4) 4-Dominic Thiem (Austria) beat Yuichi Sugita (Japan) 6-1 6-2
BARCELONA, April 28 World number one Andy Murray was forced to dig deep to overcame Albert Ramos-Vinolas 2-6 6-4 7-6(4) and reach the Barcelona Open semi-finals on Friday, avenging his defeat by the Spaniard in the Monte Carlo Masters last week.
* Russian has three titles in Stuttgart (Updates with quotes)
April 28 (Gracenote) - Results from the Hungarian Open Men's Singles Quarterfinal matches on Friday 1-Lucas Pouille (France) beat Martin Klizan (Slovakia) 6-4 6-3 6-Paolo Lorenzi (Italy) beat Andrey Kuznetsov (Russia) 6-4 6-4 Laslo Djere (Serbia) beat 4-Fernando Verdasco (Spain) 2-6 7-6(4) 6-2 Aljaz Bedene (Britain) beat 2-Ivo Karlovic (Croatia) 6-4 6-3
STUTTGART, Germany, April 28 Former world number one Maria Sharapova cruised into the Stuttgart Grand Prix semi-finals on Friday, extending her winning comeback from a doping suspension with a smooth 6-3 6-4 victory over Estonian qualifier Anett Kontaveit.
April 27 (Gracenote) - Results from the Stuttgart Grand Prix Women's Singles Round 2 matches on Thursday 2-Karolina Pliskova (Czech Republic) beat CoCo Vandeweghe (U.S.) 7-6(2) 6-4 Kristina Mladenovic (France) beat 1-Angelique Kerber (Germany) 6-2 7-5 Maria Sharapova (Russia) beat Ekaterina Makarova (Russia) 7-5 6-1 Anastasija Sevastova (Latvia) beat 6-Johanna Konta (Britain) 6-3 7-5 Carla Suarez Navarro (Spain) beat Elena Vesnina (Russia) 6-2 6-4 Laura
BARCELONA, April 27, Third seed Rafael Nadal remained on course for a 10th Barcelona Open title after reaching the quarter-finals with a 6-3 6-4 victory over Kevin Anderson on Thursday.