Rob Kearney ruled out of Ireland's game against England

Rob Kearney was forced off in Paris by a medial ligament strain

Rob Kearney will miss Ireland's Six Nations match against England after failing to recover from a knee injury sustained against France last week.

Kearney had to go off during Ireland's 33-10 defeat in Paris and will be out for three to five weeks.

The full-back is also in danger of missing Ireland's home games against Wales and Scotland on 13 and 20 March.

Stephen Ferris and Leo Cullen didn't train with the Irish squad in Cork on Thursday because of minor knocks.

However, both forwards should be available for the Twickenham contest on 27 February.

Donncha O'Callaghan is likely to have a scan on his leg injury next week.

606: DEBATE It will be Keith Earls or Tommy Bowe at full-back with Trimble and one of Earls/Bowe on the wing. Maybe Horgan if fit ulsterrugger

Lock O'Callaghan has been ruled out of Ireland's opening two matches because of the injury.

Kearney had a scan on Sunday which revealed a medial ligament strain.

Brian O'Driscoll and John Hayes both trained with no problems on Thursday after picking up minor knocks in the Paris defeat.

Connacht hooker Sean Cronin has joined up with the squad following the six-week suspension handed to Jerry Flannery on Wednesday.