(Agencies)
Updated: 2007-11-30 09:56

ROME - AC Milan striker Ronaldo is unsure whether he will be able to play at the FIFA Club World Cup in Japan next month because of a new injury scare.

AC Milan's Ronaldo smiles on the bench before their Champions League Group D soccer match against Benfica at Luz stadium in Lisbon November 28, 2007. [Agencies]

The Brazilian pulled up with a calf pain while warming up to come on as a substitute for the European champions during Wednesday's 1-1 draw at Benfica in the Champions League.

After the match Milan coach Carlo Ancelotti said that the problem was not serious and that he expected Ronaldo be able to play in Saturday's Serie A clash with Juventus.

But the striker was much less optimistic on Thursday.

"I still feel a little pain. I don't think I'll recover for the Juve game," he told La Gazzetta dello Sport's Web site (www.gazzetta.it).

"I still don't know what happened yesterday. Tomorrow I'll have to do tests, so it is necessary to wait."

When asked if he expected to be ready for the Club World Cup, he replied: "I don't know".

Ronaldo had only just returned from a nagging leg injury, making his first appearance of the campaign in Sunday's 2-1 league win at Cagliari.