Nike manufactures Arsenal's jerseys, which are sponsored by Emirates. Chelsea has traditionally worn blue jerseys, which they now pair with blue shorts and white stockings. The two clubs have a shared history; they originally formed as the Gunners and Blues in 1880 and 1868 respectively. However, there is more to their relationship than just competition for titles. Chelsea has been based in London since 1905, while Arsenal hasn't yet found a home base in England. Both clubs are owned by Russian billionaire Stan Kroenke. However, while Chelsea is considered a club of the world's rich and famous, Arsenal is known for being a family-friendly team who sells merchandise with smiling faces on it. The clubs compete annually in the English Premier League, which is the most popular football league in Europe. Its top level is divided into two groups, called "Premier League" and "Champions League". After winning the group, Chelsea was crowned 2012-13 Premier League champions. Arsenal was also very successful during this time, having won the FA Cup in 2000 and 2001. They also had a long running rivalry with Manchester United that ended in 2013. Currently, Arsenal is expected to be bought out by American investor Alisher Usmanov.