US Open PIX: Nadal, Serena, Delpo advance to quarters; Raonic ousted by Isner

IMAGES from Day 7 of the US Open on Sunday IMAGE: Spain's Rafael Nadal returns the ball during his men's singles fourth round match against Georgia's Nikoloz Basilashvili. Photograph: Julian......

How Del Potro can be a 'nightmare' for Nadal...

'He is tall so Rafa's shots don't bounce over his shoulder, he has big weapons' IMAGE: Argentina's Juan Martin Del Potro plays a forehand return. Photograph: Matthew Stockman/Getty Images......

French Open PIX: Nadal overcomes hiccup, to face Del Potro in semis

IMAGES from the French Open matches played on Thursday IMAGE: Spain's Rafael Nadal celebrates after winning his quarter-final match against Argentina's Diego Schwartzman. Photograph: Gonzalo......

US Open: What brought DelPo's downfall against Nadal

'When you don't have that confidence to play three, four hours with a good backhand against Rafa, is just matter of time to get down your game' IMAGE: Juan Martin del Potro reaches for a backhand......

'Ole, ole, ole, ole, Delpo, Delpo'

‘I can lose the match, but I will never forget this. It's bigger than a win in any match’ IMAGE: Juan Martin del Potro of Argentina waves to the crowd after being defeated by Stanislas......