Marin Cilic and Juan Martin Del Potro book quarter-final berths

Former Wimbledon and Australian Open runner-up Marin Cilic held off Fabio Fognini battle into the French Open last eight.

Fognini, who knocked out British number one Kyle Edmund in the third round, looked down and out at two sets behind and also required court-side treatment on an ankle injury.

However, he still managed to fight back to 2-2  after losing the first two sets, even saving a match point in the fourth.

However, third seed Cilic took the decider to win 6-4 6-1 3-6 6-7 (4/7) 6-3.

The Croatian will now face Juan Martin del Potro in the quarter-final after he saw off John Isner in straight sets.

The Argentinian, whose solitary grand slam title remains the 2009 US Open, ran out 6-4 6-4 6-4 winner.