Ben Roethlisberger has described UK NFL fans as "passionate" ahead of the first of two games at Wembley Stadium this season.
Roethlisberger's Pittsburgh Steelers will play the Minnesota Vikings in London this Sunday, with both sides still looking for their first win of the season.
The quarterback told the Steelers' website: "When I went over there I did some fan forums with some of the Steelers' fans. There is Steelers Nation UK over there, so I got to meet them. They're passionate. They know their stuff.
"I wouldn't say they're as knowledgeable as everyone over here because they still have a little rugby and soccer on their mind, but they genuinely are passionate for the Steelers and for NFL football over there.
"I've been over there a couple times. I know the jet lag does get you. It's a wasted day when you get over there because you're so exhausted. But I know Coach wants to treat this as a business trip, so that's why we're going over and trying to take care of business."
The Jacksonville Jaguars and San Francisco 49ers play at Wembley next month.