![France's Paul-Henri Mathieu during the Masters Guinot Mary Cohr tennis tournament in Rueil-Malmaison, France on May 23, 2012. Photo by Thierry Plessis/ABACAPRESS.COM Stock Photo - Alamy France's Paul-Henri Mathieu during the Masters Guinot Mary Cohr tennis tournament in Rueil-Malmaison, France on May 23, 2012. Photo by Thierry Plessis/ABACAPRESS.COM Stock Photo - Alamy](https://c8.alamy.com/comp/2E0FFNW/frances-paul-henri-mathieu-during-the-masters-guinot-mary-cohr-tennis-tournament-in-rueil-malmaison-france-on-may-23-2012-photo-by-thierry-plessisabacapresscom-2E0FFNW.jpg)
France's Paul-Henri Mathieu during the Masters Guinot Mary Cohr tennis tournament in Rueil-Malmaison, France on May 23, 2012. Photo by Thierry Plessis/ABACAPRESS.COM Stock Photo - Alamy
![Ben Rothenberg on Twitter: "Once you notice, you'll see them everywhere: on the ubiquitous Guinot-Mary Cohr patches, mark of the tennis underdog:https://t.co/lAP3gGEbt6 https://t.co/98YLqbLTU2" / Twitter Ben Rothenberg on Twitter: "Once you notice, you'll see them everywhere: on the ubiquitous Guinot-Mary Cohr patches, mark of the tennis underdog:https://t.co/lAP3gGEbt6 https://t.co/98YLqbLTU2" / Twitter](https://pbs.twimg.com/media/DI16PhPWAAEqJbH.jpg)
Ben Rothenberg on Twitter: "Once you notice, you'll see them everywhere: on the ubiquitous Guinot-Mary Cohr patches, mark of the tennis underdog:https://t.co/lAP3gGEbt6 https://t.co/98YLqbLTU2" / Twitter
![Professional Tennis Player Gael Monfis during Quarterfinal Match Against Seventeen Times Grand Slam Champion Roger Federer Editorial Stock Image - Image of match, culture: 48835344 Professional Tennis Player Gael Monfis during Quarterfinal Match Against Seventeen Times Grand Slam Champion Roger Federer Editorial Stock Image - Image of match, culture: 48835344](https://thumbs.dreamstime.com/z/professional-tennis-player-gael-monfis-quarterfinal-match-against-seventeen-times-grand-slam-champion-roger-federer-new-48835344.jpg)
Professional Tennis Player Gael Monfis during Quarterfinal Match Against Seventeen Times Grand Slam Champion Roger Federer Editorial Stock Image - Image of match, culture: 48835344
![Ben Rothenberg on Twitter: "Once you notice, you'll see them everywhere: on the ubiquitous Guinot-Mary Cohr patches, mark of the tennis underdog:https://t.co/lAP3gGEbt6 https://t.co/98YLqbLTU2" / Twitter Ben Rothenberg on Twitter: "Once you notice, you'll see them everywhere: on the ubiquitous Guinot-Mary Cohr patches, mark of the tennis underdog:https://t.co/lAP3gGEbt6 https://t.co/98YLqbLTU2" / Twitter](https://pbs.twimg.com/media/DI1rVhOWAAAcTbh.jpg)