Borthwick is with the rest of the national squad in Portugal, where Johnson has called up props Matt Mullan and Dan Cole, Harlequins flanker Chris Robshaw, Wasps No8 Dan Ward-Smith and Leicester scrum-half Ben Youngs as cover for injured Andrew Sheridan, Julian White, Tom Croft, Joe Worsley and Harry Ellis. James Haskell's fitness is also being monitored after the Stade Francais flanker hurt his knee at the weekend.