Louis Rees-Zammit made his first appearance for the Kansas City Chiefs in an NFL pre-season friendly loss at the Jacksonville Jaguars.
The 23-year-old former Wales wing made headlines in January when he quit rugby union to pursue a new career in American football.
Rees-Zammit, who subsequently signed a three-year deal with the reigning Super Bowl champions, performed as running back, kicker and kick-returner during Saturday’s match, in addition to being part of the punt coverage team.
“It was a great first experience,” he told the Irish NFL Show following the Chiefs’ 26-13 defeat at EverBank Stadium in Florida.
“I loved it, I loved getting the snaps I did, on special teams as well which was great. I’ve just got to look back on this, review it and see how I can get better.
“The atmosphere was great, it was pretty electric in the stadium and there was a load of Chiefs fans, which helped massively. It was a great game and I’m looking forward to the next one.”
The Chiefs, who begin the regular NFL season against the Baltimore Ravens on September 5, continue their pre-season fixtures at home to the Detroit Lions next Saturday.
Elsewhere, former Gaelic football goalkeeper Charlie Smyth marked his debut for the New Orleans Saints by kicking a dramatic winning field goal to secure a 16-14 pre-season success at the Arizona Cardinals.
The rookie 22-year-old Irishman, who, like Rees-Zammit, joined the NFL’s International Player Pathway Programme earlier this year, converted from 37 yards with just five seconds remaining.
“I thought it was awesome,” Saints head coach Dennis Allen told a press conference.
“First kick in an American football game and for him to knock it through like that in a pressure situation was cool to see.”