Marin Cilic was handed the easiest of fourth-round victories at Wimbledon as Kei Nishikori retired due to injury.
Monday's second match on No. 2 Court looked set to prove an intriguing one, with the two finalists from the 2014 US Open, won by the Croatian, looking to seal a place in the last eight.
However, it soon became apparent that fifth seed Nishikori, who had been hampered by a rib injury ahead of this tournament, was well short of full fitness as Cilic raced through the first set in just 16 minutes.
The Japanese initially battled on, his serving speed severely limited, before retiring with Cilic holding a commanding 6-1 5-1 advantage.
Cilic, the ninth seed at the All England Club, is now likely to face seven-time champion Roger Federer in the quarter-finals, with the Swiss two sets up against Steve Johnson on Centre Court.