London 2012: Pakistan's big hopes in the hockey
30 July 2012 Last updated at 00:45 BST
Pakistan's hopes of an Olympic medal rest almost entirely on the hockey pitch, and the pressure will be on when they play their first match against Spain.
Out of a total of 10 Olympic medals Pakistan has won in its history, eight have been in field hockey.
But London 2012 comes after a period of turmoil for the team and at a difficult time for the country.
Aleem Maqbool has been following Pakistan's national side and caught up with them at their training camp in Abbottabad.