![Nicolas Kiefer, Germany, playing a backhand, tennis, the ITF Grand Slam tournament, French Open 2009, Stock Photo, Picture And Rights Managed Image. Pic. IBR-1186941 | agefotostock Nicolas Kiefer, Germany, playing a backhand, tennis, the ITF Grand Slam tournament, French Open 2009, Stock Photo, Picture And Rights Managed Image. Pic. IBR-1186941 | agefotostock](https://previews.agefotostock.com/previewimage/medibigoff/0fd978c8fe70bbffe541609013da583a/ibr-1186941.jpg)
Nicolas Kiefer, Germany, playing a backhand, tennis, the ITF Grand Slam tournament, French Open 2009, Stock Photo, Picture And Rights Managed Image. Pic. IBR-1186941 | agefotostock
![Tennis - Wimbledon Championships - Men's Singles - Second Round - Boris Becker v Nicolas Kiefer Stock Photo - Alamy Tennis - Wimbledon Championships - Men's Singles - Second Round - Boris Becker v Nicolas Kiefer Stock Photo - Alamy](https://c8.alamy.com/comp/G975GK/tennis-wimbledon-championships-mens-singles-second-round-boris-becker-G975GK.jpg)
Tennis - Wimbledon Championships - Men's Singles - Second Round - Boris Becker v Nicolas Kiefer Stock Photo - Alamy
![Roger Federer can break Jimmy Connors' mark of 109 titles, says Nicolas Kiefer | Tennis News | Sky Sports Roger Federer can break Jimmy Connors' mark of 109 titles, says Nicolas Kiefer | Tennis News | Sky Sports](https://e0.365dm.com/19/03/768x432/skysports-nicolas-kiefer-tennis_4597237.jpg?20190304161136)
Roger Federer can break Jimmy Connors' mark of 109 titles, says Nicolas Kiefer | Tennis News | Sky Sports
![Nicolas Kiefer at the Los Angeles Tennis Open Editorial Stock Image - Image of wide, professional: 11418909 Nicolas Kiefer at the Los Angeles Tennis Open Editorial Stock Image - Image of wide, professional: 11418909](https://thumbs.dreamstime.com/z/nicolas-kiefer-los-angeles-tennis-open-11418909.jpg)
Nicolas Kiefer at the Los Angeles Tennis Open Editorial Stock Image - Image of wide, professional: 11418909
![Ex-tennis star Nicolas Kiefer assesses entry chaos around Djokovic for Alexander Zverev "positive" and expects victory at the Australian Open - California18 Ex-tennis star Nicolas Kiefer assesses entry chaos around Djokovic for Alexander Zverev "positive" and expects victory at the Australian Open - California18](https://california18.com/wp-content/uploads/2022/01/7854855018579991.jpeg)
Ex-tennis star Nicolas Kiefer assesses entry chaos around Djokovic for Alexander Zverev "positive" and expects victory at the Australian Open - California18
![German tennis pro Nicolas Kiefer looks frustrated during his match against Belarusian Mirnyi at the ATP German Masters in Hamburg, Germany, Wednesday, 17 May 2006. Kiefer lost the match in two sets German tennis pro Nicolas Kiefer looks frustrated during his match against Belarusian Mirnyi at the ATP German Masters in Hamburg, Germany, Wednesday, 17 May 2006. Kiefer lost the match in two sets](https://c8.alamy.com/comp/D3NHRG/german-tennis-pro-nicolas-kiefer-looks-frustrated-during-his-match-D3NHRG.jpg)