French Open tennis: Roger Federer and Marin Cilic in heated towel row with umpire - 'I was waiting for you!'

French Open tennis - 'Am I playing too slow?!' - Roger Federer questions his opponent Marin Cilic after a strange row with the umpire over taking too long getting his towel at Roland Garros. Watch all the action from the 2021 French Open live on Eurosport, eurosport.co.uk and the Eurosport app with 13-time champion Rafael Nadal eyeing a remarkable 14th title.