Out on Court One today:

• Sloane Stephens (18) v Svetlana Kuznetsova (13) - 11:30 BST
• Nick Kyrigos (15) v Feliciano Lopez (22) - to finish
• Jiri Vesley v Joao Sousa (31)

Sloane Stephens is a former quarter-finalist here at SW19 and comes up against experienced Russian Kuznetsova, who has two Grand Slams to her name.

Kyrigos and Lopez resume their third round match which was ended by bad light on Saturday. They are currently one set apiece.

Jiri Vesley is one of only four men to have beaten world number one Novak Djokovic this year. Portuguese Sousa is into the third round of Wimbledon for the first time. 

Image source, rex

The order of play in the third round matches on Centre Court:

• Coco Vandeweghe (27) v Roberta Vinci (6) - 11:30 BST
• Serena Williams (1) v Annika Beck 
• Alexander Zverev (24) v Tomas Berdych (10)

Vandeweghe reached the quarter-finals here last year, while US Open finalist Vinci has never made it past the last 16.

Serena Williams is looking for her seventh Wimbledon title and a record-equaling 22nd Grand Slam. Her German opponent Beck has yet to make the quarter-finals at a major tournament.

Berdych is looking to make the Wimbledon final for the first time since 2010, while Zvrev is making his debut in the third round today.

Image source, Rex Features

There's a lot to be catching up on after days of rain delays, so play on all courts - including Centre - will start at 11:30 BST.

Basically, you can kick back and spend your whole day watching tennis. Neat, huh?

Here's the full low down on what to expect on middle Sunday...

Send us some snaps of where you're watching middle Sunday - wherever you are.

This is only the fourth time the middle Sunday has been used at Wimbledon.

The last time was in 2004, while the weather also affected the schedule in 1991 and 1997.

In previous years, fans had to queue up to get the 22,000 unreserved tickets (Wimbledon *loves* a queue).

But this year, in the glorious days of advanced internet technology, fans were able to buy them online. And they were snapped up in 27 minutes on Saturday.

Let us know via #bbctennis if you've been one of the lucky ones!

Image source, Getty Images

In the last few days, the covers at Wimbledon have been on and off more times than Ross and Rachel during the late 1990s.

On Friday, the officials took the decision to open up the gates on what would usually be the tournament's day off in order to get back up to speed.

And thus People's Sunday was born.

Image source, Rex Features

What's this, then? Play at Wimbledon on the middle Sunday? It's what mother nature wanted.

Rejoice and behold an extra day of tennis goodness. 

Image source, Rex Features