Bracken was due to captain England A

The Saracens captain was on the receiving end of a high tackle during Sunday's Zurich Premiership clash against leaders Gloucester at Vicarage Road.

The 41-times-capped scrum-half is out of England's A international against France next week, when he was due to skipper the home side.

Martyn Wood of Wasps has been called up in his place, with Sale's Nick Walshe the other scrum-half in the England squad.

Bracken also misses the Premiership trip to Northampton on Saturday.

Centre Tim Horan will take over as captain, with New Zealander Dan Kirton wearing the number nine jersey.

Saracens may have lost Bracken but Thomas Castaignede, named in the France squad for next week's Six Nations opener against England, returns at full-back.

He has overcome a niggling injury problem and replaces Adryan Winnan for the trip to Franklin's Gardens.