In pictures: Football star turned soldier

1 of 5 Pat Tillman played for the American football team, the Arizona Cardinals, for four seasons - from 1998 to 2001 - and had been offered a lucrative contract with the team.

2 of 5 But he was so moved by the attacks on the World Trade Center that he gave up the sporting life to enlist in the army in 2002.

3 of 5 He fought in Iraq and was killed this week during a gunfight in south-east Afghanistan. High-profile figures from the world of politics and sport have paid tribute to the player.

4 of 5 Fans have been queuing to sign a memorial to outside the Cardinals' training facility.

5 of 5 Pat Tillman is America's first top-level professional sportsman to die in military action since the Vietnam era.