Tadhg Furlong says he can’t rely on what he picked up from his Lions team-mates two years ago when Ireland face England tomorrow.
The Leinster prop started all three Tests against New Zealand in 2017, while all of England’s front row, Kyle Sinckler, Jamie George and Mako Vunipola, were in the squad for the drawn series.
"You know them pretty well off the field and you’ve shared some good moments with them but it’s been two years since we’ve played with each other," the Wexford native, who will win his 29th cap, told RTÉ Sport.
"The game has moved on a lot, different coaches driving different things.
"You can’t count on what they did back then as what they are going to put out at the weekend. You have to do your own video analysis of recent games.
"There's an underlying knowledge of how hard we are going to have to work, how clinical we are going to have to be if we want to come out on top."
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Ireland: Robbie Henshaw; Keith Earls, Garry Ringrose, Bundee Aki, Jacob Stockdale; Johnny Sexton, Conor Murray; Cian Healy, Rory Best (capt), Tadhg Furlong; Devin Toner, James Ryan; Peter O'Mahony, Josh van der Flier, CJ Stander.
Replacements: Sean Cronin, Dave Kilcoyne, Andrew Porter, Quinn Roux, Sean O'Brien, John Cooney, Joey Carbery, Jordan Larmour.
England: Elliott Daly, Jonny May, Henry Slade, Manu Tuilagi, Jack Nowell, Owen Farrell (capt), Ben Youngs, Billy Vunipola, Tom Curry, Mark wilson, George Kruis, Mato Itoje, Kyle Sinckler, Jamie George, Mako Vunipola.
Replacements: Luke Cowan-Dickie, Ellis Genge, Harry Williams, Courtney Lawes, Nathan Hughes, Dan Robson, George Ford, Chris Ashton.
Follow Ireland v England (4.45pm) via our liveblog on RTÉ.ie/sport and the News Now app, or listen to live national radio commentary on RTÉ Radio 1's Saturday Sport