Rafael Nadal v Nick Kyrgios - who will win and why?

Luke Sheehan on why Nadal will win:

That he is yet to win in three sets so far at the All England Club in 2014 spells an ominous warning for Kyrgios. The doubters are quick to come for the nine-time French Open winner, but people seem to dismiss - mistakenly - that he is a two-time winner in London also.

Rafa is a man used to getting his own way, and he is going to want to assert his authority early on in his clash with Kyrgios, especially after losing the first set of each of his three matches so far. If you believe Rafa himself, he humbly attributed his third-round first-set loss to his opponent, and said he felt he played well early. Kyrgios has had the same problem in his past two outings, dropping the first set before fighting back for victory.

Trying to come from behind against Rafa, though, is like fighting your way out of quicksand - you might battle hard, but the result will still be the same.

It is statement time for Nadal, and with Kyrgios appearing on centre court for the first time - unlike his two previous opponents - the Spaniard will hoping he can use his experience in front of the Royal Box to cruise to a three-set triumph and propel his charge for a third Wimbledon title.

Dejan Kalinic on why Kyrgios will win:

Kyrgios' passion and energy can be over the top as he tries to feed off the crowd, but he has shown an ability to stay more level-headed so far at Wimbledon. His flamboyance may also annoy Nadal, particularly if he can get on top early. Early nerves could be an issue on Centre Court and falling behind would make it particularly tough against Nadal.

Despite twice winning the title, Nadal has looked far from comfortable on the grass so far. The Spaniard has started slowly in each of his three matches and Kyrgios needs to capitalise early on. If he can produce a high percentage of first serves, be aggressive and come to the net to push Nadal back, Kyrgios is more than capable of producing what would be a huge upset.

He also comes into the match having just beaten a left-hander, albeit one below Nadal's tremendous level, but he cannot afford concentrate lapses. Kyrgios may need Nadal to be a little below his best, but if he can reach the levels he knows he can, a famous win could be on the cards.