![Professional tennis player Stanislas Wawrinka during semifinal match at US Open 2013 against Novak Djokovic – Stock Editorial Photo © zhukovsky #42641141 Professional tennis player Stanislas Wawrinka during semifinal match at US Open 2013 against Novak Djokovic – Stock Editorial Photo © zhukovsky #42641141](https://st.depositphotos.com/1587911/4264/i/950/depositphotos_42641141-stock-photo-professional-tennis-player-stanislas-wawrinka.jpg)
Professional tennis player Stanislas Wawrinka during semifinal match at US Open 2013 against Novak Djokovic – Stock Editorial Photo © zhukovsky #42641141
![Nuremberg, Germany. 11th June, 2013. German professional tennis player Andrea Petkovic hits the ball during a WTA match against Sweden's Arvidsson in Nuremberg, Germany, 11 June 2013. Photo: DAVID EBENER/dpa/Alamy Live News Nuremberg, Germany. 11th June, 2013. German professional tennis player Andrea Petkovic hits the ball during a WTA match against Sweden's Arvidsson in Nuremberg, Germany, 11 June 2013. Photo: DAVID EBENER/dpa/Alamy Live News](https://c8.alamy.com/comp/D952H2/nuremberg-germany-11th-june-2013-german-professional-tennis-player-D952H2.jpg)
Nuremberg, Germany. 11th June, 2013. German professional tennis player Andrea Petkovic hits the ball during a WTA match against Sweden's Arvidsson in Nuremberg, Germany, 11 June 2013. Photo: DAVID EBENER/dpa/Alamy Live News
![Retired tennis pro didn't know the family killed in his home; video shows patriarch purchasing fireworks days before deaths Retired tennis pro didn't know the family killed in his home; video shows patriarch purchasing fireworks days before deaths](https://www.gannett-cdn.com/authoring/2014/05/15/NFTU/ghows-LK-bc1c7b32-8d6a-49ed-9778-60191f9bc568-fa7e2537.jpeg?width=1200&disable=upscale&format=pjpg&auto=webp)
Retired tennis pro didn't know the family killed in his home; video shows patriarch purchasing fireworks days before deaths
![Professional tennis player Andrea Petkovic from Germany practices for US Open 2013 – Stock Editorial Photo © zhukovsky #47530469 Professional tennis player Andrea Petkovic from Germany practices for US Open 2013 – Stock Editorial Photo © zhukovsky #47530469](https://st.depositphotos.com/1587911/4753/i/950/depositphotos_47530469-stock-photo-professional-tennis-player-andrea-petkovic.jpg)
Professional tennis player Andrea Petkovic from Germany practices for US Open 2013 – Stock Editorial Photo © zhukovsky #47530469
![Professional Tennis Player Elina Svitolina during First Round Match at US Open 2013 Against Dominika Cibulkova Editorial Photography - Image of billie, prize: 36777847 Professional Tennis Player Elina Svitolina during First Round Match at US Open 2013 Against Dominika Cibulkova Editorial Photography - Image of billie, prize: 36777847](https://thumbs.dreamstime.com/z/professional-tennis-player-elina-svitolina-first-round-match-us-open-against-dominika-cibulkova-new-york-august-36777847.jpg)
Professional Tennis Player Elina Svitolina during First Round Match at US Open 2013 Against Dominika Cibulkova Editorial Photography - Image of billie, prize: 36777847
![Professional Tennis Player Novak Djokovic Practices for US Open 2013 Editorial Stock Image - Image of singles, djokovic: 34891559 Professional Tennis Player Novak Djokovic Practices for US Open 2013 Editorial Stock Image - Image of singles, djokovic: 34891559](https://thumbs.dreamstime.com/b/professional-tennis-player-novak-djokovic-practices-us-open-flushing-ny-august-billie-jean-king-national-center-34891559.jpg)
Professional Tennis Player Novak Djokovic Practices for US Open 2013 Editorial Stock Image - Image of singles, djokovic: 34891559
![Professional tennis player Caroline Wozniacki during third round match at US Open 2013 against Camila Giorgi at Billie Jean King National Tennis Center – Stock Editorial Photo © zhukovsky #38598453 Professional tennis player Caroline Wozniacki during third round match at US Open 2013 against Camila Giorgi at Billie Jean King National Tennis Center – Stock Editorial Photo © zhukovsky #38598453](https://st.depositphotos.com/1587911/3859/i/950/depositphotos_38598453-stock-photo-professional-tennis-player-caroline-wozniacki.jpg)