LONDON, ENGLAND - SEPTEMBER 25: James Collins (R) of Aston Villa reacts as he is treated by medical staff during the Barclays Premier League match between Queens Park Rangers and Aston Villa at Loftus Road on September 25, 2011 in London, England. (Photo by Dean Mouhtaropoulos/Getty Images)
Aston Villa central defender James Collins has been ruled out of Tuesday's home Barclays Premier League clash against Bolton with a groin injury suffered during Saturday's goalless draw with Sunderland.
Villa will give a late fitness test to striker and current skipper Gabriel Agbonlahor, who suffered a shoulder setback against the Black Cats. If he is ruled out, Emile Heskey is on stand-by to replace him with Cuellar taking over the armband.
It means Coyle may turn to Vela for Tuesday's crucial clash against Villa. "It won't faze us because he [Vela] has the ability," said Coyle.
Playmaker Davies became the club's latest injury worry when he picked up a leg injury which forced him to miss training on Monday. Coyle remains optimistic he will be fit to play against Villa, but he will still be without Holden, Chung-yong, Mears and Muamba.