Six Nations: Tom Croft and Courtney Lawes have been joined in England's training squad by Harlequins pair Joe Marler and Chris Robshaw ahead of Sunday's Six Nations showdown with Scotland.

Croft and Lawes, whose return to the England camp was confirmed yesterday, are in contention for Calcutta Cup selection after overcoming injuries.

Marler provides additional frontrow cover for England while Robshaw comes into the camp in place of Joe Worsley, who is receiving treatment at Wasps for knee and hand injuries.

Wasps centre Riki Flutey is also back at the club to receive treatment for a dead leg.