England to learn extent of injuries to Courtney Lawes and Dylan Hartley
England duo Courtney Lawes and Dylan Hartley have undergone scans on their respective knee injuries.
Last Updated: 29/10/12 8:26pm
The Saints pair picked up their injuries in Saturday's Aviva Premiership defeat to Saracens and are doubtful for at least England's opening QBE International against Fiji on November 10, which is followed by Tests against Tri-Nations powerhouses Australia, South Africa and New Zealand.
Harlequins lock George Robson was added to the England squad as cover for Lawes on Sunday night, with London Irish hooker David Paice providing back-up for Hartley.
Head coach Lancaster has also called up Worcester prop Matt Mullan as Quins loosehead Joe Marler nurses a tight hamstring.
The England boss will be concerned at the prospect of starting the autumn without two of his first-choice pack, particularly as Lawes missed a large part of last season with a left knee problem, although it is his right that is troubling him on this occasion.
Lawes and Hartley had their scans on Monday evening, and the results will be made public when Lancaster speaks to the media on Tuesday evening.