A Roland Garros 2018 tennis ball on a court at Roland Garros in Paris, France, 25 May 2018. The 117th French Open tennis tournament starts with its first round matches on 27 May 2017. EPA-EFE/CHRISTOPHE PETIT TESSON
A Roland Garros staff member shows his tattoo while training sessions go on at the courts at Roland Garros in Paris, France, 25 May 2018. The 117th French Open tennis tournament starts with its first round matches on 27 May 2017. EPA-EFE/CHRISTOPHE PETIT TESSON
Serena Williams of the USA during a training session on a court at Roland Garros in Paris, France, 25 May 2018. The 117th French Open tennis tournament starts with its first round matches on 27 May 2017. EPA-EFE/CHRISTOPHE PETIT TESSON
Rafael Nadal of Spain during a training session on a court at Roland Garros in Paris, France, 25 May 2018. The 117th French Open tennis tournament starts with its first round matches on 27 May 2017. EPA-EFE/CHRISTOPHE PETIT TESSON
Rafael Nadal of Spain during a training session on a court at Roland Garros in Paris, France, 25 May 2018. The 117th French Open tennis tournament starts with its first round matches on 27 May 2017. EPA-EFE/CHRISTOPHE PETIT TESSON
