Eoin Morgan is hopeful of leading England in next week's World Cup opener despite a finger injury that will keep him out of Saturday's warm-up against Australia.

The captain suffered a scare when he hurt his left index finger during catching drills at the Ageas Bowl on Friday and was sent to hospital for X-rays which showed "a small flake fracture".

That was enough to rule him out of the following day's game but the prognosis was for a full and swift recovery that would see him fit for the tournament curtain-raiser against South Africa in six days.

Speaking on www.cricketworldcup.com, Morgan said: "The digit is the best I could have hoped for. I dropped a catch at training and dislocated it earlier and there's a very small fracture in there but I'm good to go.

"I am going to miss the game tomorrow unfortunately but, as regards to the first game of the tournament, I should be fit to go. Very good news."

Morgan was taking chances from the bowling machine on the outfield when he was struck, lingering on the pitch for a couple of minutes before the discomfort persuaded him to seek assistance.

The decision was taken to send him for what was described as a "precautionary X-ray" and shortly after 2pm he returned to the team hotel, which is part of the stadium complex, in good spirits.

Almost three hours passed before the ECB made the results public and, although it was immediately clear that he would not be taking the field against Australia, the news that it was neither a bad break nor one which would immediately rule him out of the first group match was positive.

Monday's practice against Afghanistan, also at the Oval, was not mentioned but it seems likely that England will only allow their inspirational skipper to take part if he is fully fit.

Hampshire's James Vince will take his place in the short term, slotting into the middle order on his home ground, but in terms of experience, form, international output and leadership he is not yet in Morgan's class.

The question of batting replacements briefly rose up the agenda as Morgan awaited his diagnosis, a field thinned by Alex Hales' removal from the squad for failed recreational drug tests and Sam Billings' dislocated shoulder.

Joe Denly, culled from the preliminary 15-man squad in an all-round role, would be most likely to get the call should any of the top six succumb, with Ben Duckett also worthy of discussion.

Denly was leapfrogged by slow left-armer Liam Dawson on account of the latter's stronger bowling and the Hampshire spinner will return against Australia as Adil Rashid rests a niggling shoulder problem. Joe Root was absent from training on personal business but will play on Saturday.

Dawson was batting at the Nursery Ground when Morgan was hurt but quickly became aware of the incident.

"I was batting on the other side, so I didn't know what went on. When I came back to the dressing room a couple of the lads were talking," he said.

"I just heard he got hit on the finger. I don't think it's too bad, but we'll see what happens tomorrow.

Asked to explain Morgan's importance as the figurehead of the squad, Dawson added: "He's massive. The cricket that's been played over the last four years has all been led by him. Hopefully he's fit and raring to go."

Australia assistant coach Brad Haddin wished Morgan well and called on his own memories of battling through the pain barrier.

"It's a World Cup...you do what you do to get through," he said.

"There are measures you can use to numb the pain. The thing with a broken finger is it hurts in the nets but once you get out in the game with the adrenaline it is not too much of an issue normally.

"I hope he's all right."