Scotland U20 7-82 Ireland U20 Ireland are just one win away from back to back U20 Six Nations Grand Slams, after dominating from start to finish in a 75-point win away to Scotland in Glasgow.Richie Murphy's side looked a league above their hosts, running in 12 tries in total, with three for Munster's Ruadhan Quinn, who was named Player of the Match.It was a record win for the Irish U20s, who will now host England at Musgrave Park on Sunday 19 March looking to win consecutive slams, and a third in the last four runnings of the championship.Murphy chose to rotate his side following the Round 3 win in Italy, making three changes to the starting XV, with two of the fresh faces scoring tries inside the first 10 minutes, Naas wing Andrew Osborne and Connacht prop Fiachna Barrett both crossed early on, with Ireland making their intentions clear by playing out from deep.They played with ferocious intensity in the opening half, their dominant scrum and lineout eventually laying the platform for hooker Gus McCarthy to score at the back of a maul on 15 minutes, bringing up a 21-0 lead.SCO 0-28 IRE Tries for captain Gus McCarthy and Ruadhan Quinn as Ireland secure their bonus point in less than 22 minutes in Glasgow.