Minnesota receiver Adam Thielen admitted he stole his football-style knee-slide celebration from team-mate Kyle Rudolph after helping the Vikings to a 33-16 victory over the winless Cleveland Browns.
Thielen was named man of the match - not a distinction usually granted in the NFL - by broadcasters after hauling in five catches for 98 yards and a score at Twickenham.
And he fully embraced the comparisons between the sports as he turned up to the post-game press conference in an Arsenal shirt.
The 27-year-old said he first got the idea for his celebration when he was a member of the Vikings team that played at Wembley in 2013, but he was made to wait and it was tight end Rudolph who reminded him this time around.
"When we came over here about (four) years ago, I thought that would be really cool," he said. "I always played (the computer game) FIFA growing up and seeing those guys celebrate, I got inspiration from that.
"But I suppose I stole it. Kyle Rudolph did it in practice the other day, I saw it and wanted to do it. I beat him to the punch I guess."
Thielen spent his Saturday afternoon watching Arsenal beat Swansea at the Emirates Stadium and said he thrived on the atmosphere created by British crowds.
"You see how passionate people are about sports, it jacked me up," he said. "I was pumped that whole game because of the atmosphere and how into the game they are, and I brought it into today.
"We had some other stuff planned, other soccer-related celebrations, because it is so cool. When you have fans that passionate about it, it's cool to show them, 'Hey, I like soccer too'."
The Vikings, who improved to 6-2 at the top of the NFC North, were heavily favoured to beat the winless Browns but laboured their way to victory.
The two teams had traded the lead until two quick Minnesota touchdowns midway through the second half put them 30-16 up and seemed to break Cleveland's resolve.
"We started a little slow, it wasn't the way we anticipated," coach Mike Zimmer said. "But our guys fought and battled and the offence had some great drives to start the second half."
Although the record books show an eighth straight loss, Cleveland coach Hue Jackson saw cause for optimism going into a bye week.
"Again, we came up on the short end of the stick," he said. "We can't finish one, that's kind of where we are. But I thought we had our chances."
A crowd of 74,237 had descended upon the home of English rugby union for the fourth NFL game to be played in London this year.
And Jackson - a position coach on the 1991 London Monarchs - admitted he could never have imagined the league making the imprint it has on the UK.
"That was a long time ago, and it was a good time playing at Wembley Stadium," he said. "What a stadium this is too. It's amazing to see how far American football has come here in London. I think teams really enjoy coming here.
"It was a great opportunity for our football team and our organisation to come and be a part of this, and hopefully we'll get a chance to do it again in the future."