Dublin , Ireland - 17 December 2016; Luke McGrath of Leinster, centre, is congratulated by team-mates after scoring his side's second try during the European Rugby Champions Cup Pool 4 Round 4 match between Leinster and Northampton Saints at the Aviva Stadium, Dublin. (Photo By Piaras Ó Mídheach/Sportsfile via Getty Images)
Dublin , Ireland - 17 December 2016; Tadhg Furlong of Leinster is tackled by Jamie Gibson, left, and Api Ratuniyarawa of Northampton Saints during the European Rugby Champions Cup Pool 4 Round 4 match between Leinster and Northampton Saints at the Aviva Stadium, Dublin. (Photo By Brendan Moran/Sportsfile via Getty Images)
Dublin , Ireland - 17 December 2016; Rory O'Loughlin of Leinster score his side's eight try during the European Rugby Champions Cup Pool 4 Round 4 match between Leinster and Northampton Saints at the Aviva Stadium, Dublin. (Photo By Stephen McCarthy/Sportsfile via Getty Images)
Dublin , Ireland - 17 December 2016; Rory O'Loughlin of Leinster celebrates after scoring his side's eight try with team-mate Zane Kirchner, right, during the European Rugby Champions Cup Pool 4 Round 4 match between Leinster and Northampton Saints at the Aviva Stadium, Dublin. (Photo By Brendan Moran/Sportsfile via Getty Images)
Dublin , Ireland - 17 December 2016; Isa Nacewa of Leinster scores his side's ninth try during the European Rugby Champions Cup Pool 4 Round 4 match between Leinster and Northampton Saints at the Aviva Stadium, Dublin. (Photo By Stephen McCarthy/Sportsfile via Getty Images)
