Karachi, Aug 6 - Pakistan cricket team is struggling with injury problems and will find it difficult to put up a balanced combination for the one-off Twenty International against Sri Lanka in Colombo Aug 12.

The Twenty20 champions could end up with only 12 fit players for the match that will be a repeat of the ICC World T20 championship final at Lord's this June.

Pakistan coach Intikhab Alam said that the team management has decided against requesting for any replacements and will try to form a winning combination from within the available players for the Twenty20 game.

The tourists have been hit hard by fitness-related problems during what has been quite an awful tour of Sri Lanka. Pakistan lost the three-match Test series 0-2 against the Sri Lankans last month and are 0-3 down in the five-match One-day international series.

Pakistan also lost a warm-up match played last month against a local side which means that they are so far winless during the tour that came just days after the conclusion of their triumphant campaign in the ICC World Twenty20 in England.

Pakistan's woes have worsened after several of their players got injured during the tour. Pace spearhead Umar Gul was the first big casualty as he suffered an ankle injury that has ruled him out of the rest of the series.

Vice-captain Misbah-ul-Haq has been unable to play in the series because of poor form and also because his sugar-levels went down alarmingly earlier this week.