Andy Farrell says he instructed Johnny Sexton to lift Ireland's Grand Slam trophy on his own despite the legendary out-half wanting to share the moment with a teammate.
Ireland's 29-16 win over England on Saturday saw Ireland clinch their fourth-ever Slam, and their first in front of a home crowd at a raucous Aviva Stadium.
It was the perfect swansong for Sexton who broke the Six Nations overall points record in what was his final game in the competition.
Read more: Ireland beat England to clinch Six Nations Grand Slam in Dublin
The 37-year-old hasn't quit international rugby for good though, as he hopes to bow out at this year's World Cup in France.
Farrell said after Saturday's Grand Slam success : "Hopefully there is bigger fish to fry for Johnny with the World Cup etc. But it is very fitting for him to lift the trophy.
"He wanted to lift it with someone else and I said he mustn't. He must savour this on his own because he deserves it."
And Farrell hailed the Leinster out-half as Ireland's 'best-ever' player.
He added: "He is one of the best if not the best Ireland has ever produced, and what a way for him to leave the Six Nations, with a Grand Slam."
Ireland overcame a resilient England side in Dublin to complete their Grand Slam on Saturday.
Dan Sheehan scored two tries while Robbie Henshaw and Ron Herring also touched down for scores.
England put it up to the hosts but were dealt a blow before half-time when Freddie Steward was shown a red card.
Farrell admits there were a few nervy moments, but praised his side for finishing the job.
"This is the fourth time we've done it, and the first at home. It means so much to everyone here and the Irish around the world, especially on St Patrick's weekend," he said.
"It was squeaky bum time for a while with the score at 10-9. We knew there would be pressure. The game was stop-start and it was a proper old-fashioned test match.
"We are disappointed with some aspects of our game but it was another bonus point win."
Meanwhile, Ireland vice-captain James Ryan said Saturday evening's win in Dublin was "one to savour".
He added: This is one of the best nights of our careers. We spoke about the opportunity of winning a Grand Slam in front of our people. We didn't get it quite right in the first half, but we worked it out.
"There was a bit of pressure, but every game you play for Ireland there's pressure. We were a bit off kilter in the first half, but that's good for you. You have to find a way.
"These are the days that are really special. Johnny's (Sexton) last Six Nations game today. What a servant he has been to Irish rugby and what a person he is."
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