Wigan are in doubt over the fitness of keeper Chris Kirkland and defender Paul Scharner in the lead-up to this weekend's game against Burnley. Kirkland dislocated a finger during last Sunday's 1-1 draw with Manchester City at DW Stadium, but fought on for the full 90-minute game after physiotherapists pushed his digit back into place, while Scharner is suffering from an aggravated hip problem. "I'll need to go to hospital to see what's happened, but it doesn't look very pleasant," Kirkland said. But Latics boss Robert Martinez is hopeful the problem is not too serious, with England international Kirkland set to undergo a scan on his injury. "We'll be having all the scans and all the tests possible to find out the extent of the injury," Martinez told the Wigan Evening Post. "At the moment we feel it might only be a dislocated finger but we need to see exactly what the situation is and we'll find out more over the next 24 hours." However, both Martinez and Scharner are more optimistic about the Austria international's hip problem. "I picked up the injury the day before the game but it felt comfortable during the warm-up," Scharner said. "During the game it tightened up again and in the end I couldn't continue. "We'll assess the injury, but hopefully I'll be okay for Saturday. I think I will be fine."