Ahead of the U.S. Open, Andy Murray stopped by the adidas Sport Performance SoHo store in New York to meet with 100 lucky fans. The appearance featured a photo-booth where fans were able to take pictures with Murray and imitate his signature fist pump. adidas is now looking for fans to get behind Murray with a series of challenges on Twitter, Instagram and Facebook.
Throughout the tournament, fans can share their own fist pump images via Instagram to show their support. Tag your photos with #allinforMurray for a chance to win daily prizes, including signed tennis product. The best entries from the competition will be compiled and shared through adidas' and Murray's social channels.