Watch Man Utd - Arsenal online

Arsenal - Man Utd: watch Champions League semi-final second leg

You can watch Manchester United's first-leg clash with Arsenal at Old Trafford through the UEFA website.

Gary Neville is definitely out for the hosts, but Wes Brown could return from long-term injury.

For the Gunners, ex-United man Mikael Silvestre is a doubt, while Andrey Arshavin isn't eligible to play in the Champions League.

Robin van Persie and Gael Clichy are both definitely out with injuries.

Surfers in the UK can watch the coverage for £2. The second leg will take place at the Emirates on Tuesday 6 May.

The ITV.com website has highlights of Chelsea's visit to Barcelona in the other semi-final, which took place on Tuesday.