Ever wondered where U.S. fans congregate in the biggest numbers to watch Champions League games? Or which teams are best supported in American bars? Wonder no more, because Heineken and FourSquare have produced a checking in system to generate a heatmap.
Above is a graphic that shows which cities in America have recorded the highest number of check-ins this season.
And here's one that breaks down those check-ins by the teams competing in the Champions League last 16.
As things stand, New York leads the city rankings for the U.S., with San Francisco—home of Bleacher Report HQ—coming in second. San Jose is third.
In terms of the club rankings, Barcelona have had the most number of fans check in so far. Perhaps surprisingly, Schalke are second, with Chelsea third.
The famously gargantuan global brand of Manchester United sees the Reds in fifth, with Arsenal just behind them.
One club that may well take notice here is Paris Saint-Germain, who despite having seemingly unlimited funds and a certain Zlatan Ibrahimovic to boost their profile, find themselves propping up the table in 16th.
If you're a U.S.-based fan who wants to check in, you can find out more via FourSquare here.
The idea is that Heineken is trying to encourage U.S. fans to get out in large groups and watch Champions League matches together—pitting cities and teams against each other in the process.
Those who check in are also giving themselves a chance to win a selection of signed memorabilia from Champions League stars (including Lionel Messi and Cristiano Ronaldo).