Joe McCarthy was in imperious form in the Irish second row in Marseille, with the 21-year-old looking like he had 50 caps rather than five.
Duhan van der Merwe - also nominated for Try of the Round - was a persistently bruising opponent for Wales as Scotland overcame 20-plus years of hurt to win in Cardiff.
Ethan Roots carried superbly for England in Rome on what was the 26-year-old's international debut. In fact, the Exeter Chiefs forward was an all-round hugely positive presence for Steve Borthwick's team.
Only Tommaso Allan (ITA) - another who's also up for Try of the Round - was on the losing team on the opening weekend, the Azzurri going dramatically close to an upset against England.
Fantasy rugby managers will have done very well with this quartet in their team for round one, and it's not too late to sign up to play ahead of round two this weekend. Just click here to put together your winning team.