The 25 Live Tour began in Barcelona in 2006, and has so far played to more than 1.3 million fans across Europe.

BBC: Michael 'to retire from touring'

"The rules are the rules - he's allowed to run again, " insisted Campbell, who is working with the BBC Radio 5 live commentary team in Barcelona.

BBC: Darren Campbell forgives ex team-mate Dwain Chambers

Mr Moore speaking at a conference in Barcelona last week, described Xbox Live as "widely admired, often copied".

BBC: NEWS | Technology | PlayStation embraces online world