There were 15 minutes remaining at the Stade de France on Saturday evening when Dylan Hartley hit the deck - KO'd.
The reason was a knee to the head, accidentally, by France prop Uini Atonio.
Hartley spent several minutes receiving treatment on the pitch before being stretchered off.
England had a four-point lead at the time. Owen Farrell would kick a further two penalties as England eased to their first Grand Slam since 2003.
Post-match, Hartley - ostensibly at least - had recovered enough sufficiently to take part in the celebrations.
Psychologically, things were not right. Hartley was undoubtedly suffering from the effects of concussion.
In his column for The Sun, the England captain revealed that he has no recollection of events - including lifting the trophy.
IT’S a great feeling to say you’re a Grand Slam winner... I just wish I could remember lifting that trophy in Paris!
After being knocked out and taken off on a stretcher I can’t remember any celebrations.
I can’t remember the trophy presentation, the victory lap or seeing my aunty and uncle in the crowd.
It’s a weird feeling so I’ve been looking at a lot of photos to piece it all together and there are bits coming back to me.
You can watch the incident between Hartley and Atonio at the 4:40 mark below.
Picture credit: Stephen McCarthy / SPORTSFILE
