Grimes has started every game in the competition for the Scots, while former Falcon Jon Dunbar is among the replacements.

Newcastle’s Colin Charvis misses out for Grand Slam hopefuls Wales because of a foot injury.

Scotland team:

C Paterson (Edinburgh), R Lamont (Glasgow), A Craig (Glasgow), H Southwell (Edinburgh), S Lamont (Glasgow), D Parks (Glasgow), C Cusiter (The Borders), T Smith (Northampton), G Bulloch (Glasgow) capt, G Kerr (Leeds), S Grimes (Newcastle), S Murray (Edinburgh), S Taylor (Edinburgh), A Hogg (Edinburgh), J Petrie (Glasgow).

Replacements:

R Russell (London Irish), B Douglas (The Borders), N Hines (Edinburgh), J Dunbar (Leeds), M Blair (Edinburgh), G Ross (Leeds Tykes), A Henderson (Glasgow).