Juan Martin del Potro's first Wimbledon campaign for three years ended in disappointing fashion as the Argentine crumbled to a 6-7(4) 7-6(6) 7-5 6-1 defeat by Frenchman Lucas Pouille on Sunday. Trailing by two sets to one when bad light stopped the third-round tussle on Saturday, Del Potro looked jaded as the fourth set sped away from him. Pouille, seeded 32nd, will face Australian Bernard Tomic in round four.