Scotland have included four players into their Six Nations squad but flanker Hamish Wilson has withdrawn due to a hand injury.
Head coach Gregor Townsend has added uncapped forwards Luke Crosbie and Matt Smith alongside Glasgow Warriors duo Alex Dunbar and Rob Harley, due to injuries to several squad players.
Glasgow trio Jonny Gray, Sam Johnson and Ryan Wilson will continue rehabilitation on their injuries in the camp.
SQUAD UPDATE | Head Coach Gregor Townsend has added four players to the Scotland squad for the 2019 Guinness Six Nations: Crosbie, Dunbar, Harley & Smith.— Scottish Rugby (@Scotlandteam) 21 January 2019
Back-row Hamish Watson has dropped out the squad while he recovers from a hand injury.
However, Edinburgh's Wilson has been ruled out after sustaining his injury in the 19-10 defeat against Montpeiller in the Champions Cup on Sunday.
Scotland will begin their Six Nations campaign at home to Italy on Feb. 2.
Full Scotland Squad:
Forwards (24): Alex Allan, Adam Ashe, Simon Berghan, Jamie Bhatti, David Cherry, Luke Crosbie, Allan Dell, Grant Gilchrist, Gary Graham, Jonny Gray, John Hardie, Rob Harley, Jake Kerr, Stuart McInally, Willem Nel, D'Arcy Rae, Jamie Ritchie, Sam Skinner, Matt Smith, Grant Stewart, Josh Strauss, Tim Swinson, Ben Toolis, Ryan Wilson
Backs (18): Chris Dean, Alex Dunbar, Darcy Graham, Nick Grigg, Sam Johnson, Chris Harris, Adam Hastings, Stuart Hogg, George Horne, Pete Horne, Huw Jones, Lee Jones, Blair Kinghorn, Greig Laidlaw (c), Sean Maitland, Ali Price, Finn Russell, Tommy Seymour.