Gallery: best of Day 12

Until he was stopped by Del Potro in Thursday's quarter-final, Marin Cilic was aiming for a breakthrough on the Paris clay, bidding to become the 24th man in the Open Era to reach the semi-finals at all four Grand Slams. He has reached the last four twice at both the Australian Open (2010, 2018) and the US Open (2014, 2015) and once at Wimbledon (2017).