Paralympics 2012: five-a-side football – in pictures

Five-a-side football is reserved for visually impaired players. Four players on each side wear blackout masks to ensure the impairment is equalised, and goalkeepers are sighted. The game is made up of two 25-minute halves and the pitch is surrounded by a sound-reflecting wall to help players communicate, and the crowd is asked to avoid being noisy while the game is in play Photograph: Tom Jenkins for the Guardian

The midfield is getting a bit cluttered Photograph: Tom Jenkins for the Guardian

Argentina captain Silvio Velo fires in a shot Photograph: Tom Jenkins for the Guardian

An Iranian player chases to keep the ball in play Photograph: Tom Jenkins for the Guardian

Argentina's Silvio Velo skips past Behzad Zadali of Iran Photograph: Tom Jenkins for the Guardian

Argentian players celebrate their 2-0 victory, with both goals being scored in the second half by captain Silvio Velo Photograph: Tom Jenkins for the Guardian

The final game of the day sees ParalympicGB take on Spain. Here Spain's Adolfo Acosta Rodriguez chases down Daniel English Photograph: Tom Jenkins for the Guardian

The GB team form a wall at a Spanish free-kick Photograph: Tom Jenkins for the Observer

A Spanish guide taps on a post to let his player know where the goal is before the succesful Spanish penalty is scored by Antonio Martin Gaitan Photograph: Tom Jenkins for the Guardian

Just two minutes later GB equalise courtesy of captain David Clarke, who runs into the referee as he celebrates his goal Photograph: Tom Jenkins for the Guardian

The Spanish players are led back onto the pitch for the second half by their sighted goalkeeper Photograph: Tom Jenkins for the Guardian

Darren Harris clashes with Antonio Martin Gaitan Photograph: Tom Jenkins for the Guardian

Lee Brunton dribbles forward Photograph: Tom Jenkins for the Guardian

David Clarke has blood pouring from his nose after a clash Photograph: Tom Jenkins for the Guardian

GB player Keryn Seal leaps over a Spanish defender as he goes on a marauding run. However neither team could fashion a winner and the game finished 1-1 Photograph: Tom Jenkins for the Guardian