- Williams Defeats Tsvetana Pironkova in U.S. Quarterfinal
- Venus Williams faces Bulgarian nemesis in last 16 at Wimbledon CNN.com
- Serena Williams edges out Tsvetana Pironkova to reach US Open semi-finals against Victoria Azarenka | Tennis | Sky Sports
- Serena overcomes Tsvetana Pironkova in three sets to reach US Open semi-finals - Eurosport
- Serena Williams Sizzles With 6-1, 6-4 Win Over Tsvetana Pironkova At Yarra Valley Classic Tennis News
- OPEN TENNIS: 'It's how you finish': Serena Williams Open semifinals | Sports | goshennews.com
- 2011: Venus Williams Tsvetana Pironkova is back | Daily Mail Online
- Venus stunned by - Eurosport
- Serena Williams vs Tsvetana Pironkova Highlights US Open - YouTube
- AroniSmart American Serena Williams Beats Bulgarian Pironkova In 2020 US
- Serena survives Pironkova test to U.S. Open semi-finals
- Serena Williams reaches US semifinals after rallying Tsvetana Pironkova | CNN
- Serena Williams beats Tsvetana at U.S. - Los Angeles Times
- Serena digs deep against to reach US Open US Open Tennis 2020 | The Guardian
- THE 3 US OPEN MOMS. Serena Williams, Pironkova, Azarenka and their children. Pictures - Tennis Tonic - News, Predictions, H2H, Scores, stats
- Mother all battles: Serena reach U.S. Open semis - CGTN
- Serena Williams beats Pironkova, secures Grand Slam semi-final P.M.
- US Open 2020: Williams overcomes Tsvetana to reach semi-finals - BBC Sport
- Serena Williams vs Tsvetana Pironkova Highlights US Open - YouTube
- Wimbledon has Titantic Tuesday, capped by Pironkova scoring swift upset of Venus Williams New York News
- US 2020: Serena Williams rallies to halt Tsvetana Pironkova fairytale and semis | Sporting News
- Third seeds Williams Medvedev reach Open semi-finals
- Pironkova Wikipedia
- In Spanish-(3) vs. Pironkova Quartefinals) 9/9/20 - %{league} Live Stream on Watch ESPN
- Serena Williams Tsvetana Pironkova scare to reach Open