Clarke, 33, had surgery on a hamstring injury last week, and had feared that his career could be over.

Writing in a newspaper column, Clarke said: "The biggest thing for me at the moment is getting back on the field for the World Cup.

"I have been told by medical staff that I am in as good a condition as I can be a week after undergoing the surgery."

Australia will co-host the World Cup  alongside neighbours New Zealand, from 14 February.

The batsman suffered the injury during Australia's 48-run first Test win over India at Adelaide.

He had injections to relieve spasms in his back while batting on the first day, but returned to the crease a day later to complete a century.

Clarke had originally been a doubt for the first Test, which was due to start at the Gabba on 4 December, with the left hamstring injury he sustained playing against South Africa in November.

However, the Brisbane Test was rescheduled following the death of Australia cricketer Phillip Hughes on 27 November, and Clarke was determined to play in the Adelaide Test, the first match after Hughes's death.