7.30pm BST

Good morning. Mutiny is in the SW19 air. It's all the fault of that blasted weather, of course, but the affable Stan Wawrinka isn't happy, the Swiss taking aim at the tournament organisers for messing up his schedule, making him play a possible five matches in seven days and potentially wrecking his hopes of adding to the Australian Open he won in January. His words yesterday were as piercing as his one-handed backhand and Novak Djokovic also added his voice to those who believe that, tradition be damned, there should be play on the middle Sunday.

But there's nothing to be done about it, even if the bottom half of the men's draw has been thrown into a state of flux, all their fourth-round matches still to be played. Wawrinka and his opponent today, Feliciano Lopez, will both have to grit their teeth and get on with it after their respective wins over Denis Istomin and John Isner (a lot of tie-breaks in that one, would you believe).

Elsewhere we've got Kei Nishikori, who can count on a sizeable backing from Japanese fans, against big-serving Milos Raonic, who's largely gone unnoticed. Then there's Roger Federer up against the doughty Tommy Robredo, who beat the world No4 at the US Open last year. They're on Court 1.

Sir is likely to be displeased about being shunted off Centre, but sir has had to make way for Rafael Nadal and Nick Kyrgios, the rising star of Australian tennis. The kid play without any inhibitions and his exciting game could give Nadal problems. The world No1 dropped the first set in each of his first three matches - but he's a different animal in the second week and as thrilling a prospect as Kyrgios is, is anyone really willing to back him? If so, let me know.

Meanwhile let's not forget that we've got some intriguing matches in the women's draw. This is usually quarter-finals day but the rain means we've also got a couple of fourth-round matches to get through - Maria Sharapova, the favourite after Serena Williams' exit, and Angelique Kerber face off on Centre Court first up, while last year's finalist, Sabine Lisicki, who quelled Ana Ivanovic's resistance yesterday, meets the dangerous Yaroslava Shvedova - the Kazakh who once played a golden set in these parts.

Shvedova is the only player from Kazakhstan in action. There's Zarina Diyas, 20, against Simona Halep, the Romanian pocket rocket who packs quite the punch. Halep should win but Diyas is improving all the time. Elsewhere it's Lucie Safarova against Ekaterina Makarova - a nice ring to that one - and Petra Kvitova, the 2011 champ, against Barbora Zahlavova Strycova, conqueror of Li Na and Caroline Wozniacki.

Let's do this. I am definitely not dizzy after back-to-back game-by-games last night.

Play begins at: 11.30am.