Wimbledon 2017 live stream – How to watch tennis online
With Murray, Nadal and Djokovic all out of Wimbledon, Roger Fereder is now the favourite to win this year's mens championship.
The seven times Wimbledon champion plays Tomas Berdych later today in the second semi-final on Centre Court.
"Being favourite or not the favourite doesn't matter," said Federer about the challenge ahead.
"These other guys are all big hitters. I feel like they will have their word to say of the outcome of the matches."
Sam Querrey, who beat Andy Murray in the quarter-final, plays Marin Cilic in the first of today's games.
So, if you want you want to watch all of today's Wimbledon action, here's how to tune in online.
Wimbledon 2017 order of play men's semi-finals
Centre Court (1pm start)
1st match – Sam Querrey v Marin Cilic (Expected 1pm)
2nd match – Roger Federer v Tomas Berdych (Expected 4pm)
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How to Watch Wimbledon 2017 men's semi-final
BBC One and BBC Two is where to catch all the action from Wimbledon with coverage getting underway from 12pm on BBC Two with BBC One also showing action from 1.45pm.
There's also radio commentary available for those without access to a screen, which can be accessed via the BBC website, as well as apps such as TuneIn Radio.
The BBC Sport website will also be showing live coverage of the day, with live text commentary available too.
The BBC Sport app, available to download for free across Android, iOS and Windows Phone devices, will also carry the live coverage and text commentary.
If you can’t get to a TV, the match will also be shown on the BBC’s iPlayer service.
This allows users to catch up on highlights whenever they want – as well as being available as a mobile app for iOS and Android devices.
BBC iPlayer is available on Amazon Fire TV, Apple TV, BT Vision, Chromecast, EE TV, FreeSat, Freeview, NOW TV, Nvidia Shield, Roku, Sky HD, Sky Q, Talk Talk TV, Virgin Media and YouView.
Log-in to any of these smart TV or set-top box apps to stream the latest coverage, or catch-up on-demand.
And if your HD TV model is not supported by the above options, you can always stream the coverage from a Chrome web browser window to the big screen using a Google ChromeCast.
You can also watch Wimbledon 2017 on Twitter – with the Twitter Sports channel broadcasting the action.
It's worth noting that you'll need a valid TV Licence if you watch or record live programmes as it is a criminal offence in the UK to watch “live” television without a TV licence.
You’ll also need a TV Licence to download or watch BBC programmes on iPlayer. This applies to any device you use.
If you missed the action, Wimbledon highlights will be shown on BBC Two tonight from 8.30pm.