Fit-again tight-head prop Euan Murray has been added to the Scotland squad ahead of Saturday's Six Nations game against France at Murrayfield.
The 33-year-old Worcester Warriors forward has missed the opening three games of the campaign through injury.
Murray, who won the last of his 58 caps against Australia in November, was sidelined with a thumb problem.
Edinburgh Rugby's Sean Kennedy and his half-back partner Harry Leonard are also training with the squad.
Murray made his club comeback against Sale on 22 February and came on in the second half in last Saturday's defeat by Harlequins.
The Scots lost their opening two games of this year's competition - to Ireland and England - but won their last match against Italy by one point.
Forwards: Johnnie Beattie (Montpellier), Kelly Brown (Saracens), Geoff Cross, David Denton, Alasdair Dickinson, Ross Ford (all Edinburgh Rugby), Chris Fusaro (Glasgow Warriors), Grant Gilchrist (Edinburgh Rugby), Ryan Grant, Jonny Gray (both Glasgow Warriors), Richie Gray (Castres), Jim Hamilton (Montpellier), Scott Lawson (Newcastle Falcons), Moray Low, Pat MacArthur (both Glasgow Warriors), Euan Murray (Worcester Warriors), Alasdair Strokosch (Perpignan), Tim Swinson and Ryan Wilson (both Glasgow Warriors).
Backs: Chris Cusiter (Glasgow Warriors), Jack Cuthbert, Nick De Luca (both Edinburgh Rugby), Alex Dunbar (Glasgow Warriors), Max Evans (Castres), Dougie Fife (Edinburgh Rugby), Stuart Hogg, Ruaridh Jackson (both Glasgow Warriors), Greig Laidlaw (Edinburgh Rugby), Sean Lamont (Glasgow Warriors), Matt Scott (Edinburgh Rugby), Tommy Seymour (Glasgow Warriors), Duncan Taylor (Saracens) and Duncan Weir (Glasgow Warriors).