Sure, here's a step-by-step guide to watching Manchester United vs West Ham United on the Fantasy Premier League today:

1. Get your Fantasy Premier League account set up and log into the game.

2. Open the game in your account and select the match you want to watch.

3. Head over to the website or app where the match is being played and find the section that displays the live stream options for the match.

4. Select the option to watch the live stream from the menu bar at the top of the page.

5. Once the live stream has started, follow the instructions provided by the website or app to watch the match.

6. Enjoy the football!

Here are some tips for watching Manchester United vs West Ham United on the Fantasy Premier League today:

* Make sure you have access to a stable internet connection. The match will be streamed on a mobile device if you're using an Android phone or tablet.

* Check the availability of the match on your local TV channel or streaming service. You can usually find information about the availability of the match on the official Fantasy Premier League website or app.

* If you're not able to watch the match on your local TV channel or streaming service, try using a different source of information such as a newspaper or sports news website.

By following these steps and utilizing the tips above, you should be able to enjoy the match between Manchester United and West Ham United on the Fantasy Premier League today.