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Canada opener John Davison, 40, was scratched from Thursday's match because of a groin injury suffered in warmup. ((Lakruwan Wanniarachchi/Getty Images))

Things went from bad to worse Thursday morning as Canada's national cricket squad was forced to take on powerhouse Pakistan without star opener John Davison.

Davison, who at 40 is the oldest player at the Cricket World Cup, was a late scratch from the Group A match because of a groin injury.  

"He got a groin injury during the warmup session and I can't comment whether he will be able to play the next game," Canadian manager Mike Henry told Reuters. "The team physio is attending to him at the moment."  

Canada certainly could have used him, skittling Pakistan to 184 before falling short by 46 runs in the chase.

Davison is the most experienced batsman on Canada's young roster and best known for producing the third-fastest World Cup century, a feat he accomplished off 67 balls against the West Indies in 2003.

Davison has yet to catch fire this time around — he was dismissed for ducks in losses to Sri Lanka and Zimbabwe — and is facing a crisis of confidence at the World Cup. 

"I'm 40 years old and probably have those self-doubts that, 'Do I still have the ability to perform at this level?"' he told reporters Wednesday in Colombo, Sri Lanka.

Canada (0-3) fared poorly in its first three matches at the World Cup, losing by a combined 431 runs.

Its next opponent is Kenya (0-3) in Delhi, India, on Monday.