Arsenal, Aston Villa, Crystal Palace, Everton, Manchester City, Stoke City, Sunderland and West Ham United have also pledged support for 'Football v Homophobia', which was launched last weekend.

A month of action began with West Ham players donning 'FvH' T-shirts prior to their 2-0 win over Swansea City at Upton Park on Saturday.

"For us as players and role models, we all recognise the importance of the Football v Homophobia campaign," said West Ham captain Kevin Nolan.

"We're passionate about supporting this and we hope that it sends out a message that there is no place for discrimination in football, nor in any sport."

There are currently no openly gay players in English professional football, although former Aston Villa midfielder Thomas Hitzlsperger came out last month, shortly after retiring.

"This isn't just about players coming out," said campaign director Lou Englefield.

"It's about all of us -- including heterosexual players and fans who attend matches week in, week out -- being willing to speak out and take visible action to challenge prejudice in the game."