10", made up of fans from each respective club. Initially dominated by the Rapids, Salt Lake has since taken a 12–5 series lead over their rivals, and are the current holders of the cup, having won it during the 2021 season. Although no annual trophy is involved, the club's more fierce rival has become Sporting Kansas City, initially born out of a 2011 preseason brawl and developed after the teams met in MLS Cup 2013. Since that time, the teams have regularly competed in the Western Conference. Many of the matches, have been heated among longtime players who played from the two teams. Real Salt Lake has a record of 19 wins, 10 draws and 16 losses in all competitions against Sporting. The team also maintains smaller, fan-driven rivalries with the LA Galaxy, Los Angeles FC, and Seattle Sounders FC. The latter derived from a meeting in the 2012 MLS Cup Playoffs, later expanding through further playoff meetings and the losses of general manager Garth Lagerway, head coach Freddy Juarez, and club captain Albert Rusnák to the club. Supporters groups Real Salt Lake has five supporters groups—Salt City United, Rogue Cavaliers Brigade, Section 26, Riot Brigade and La Barra—which as of 2019 all exist under a larger unified umbrella group known as The Riot. Leo the Lion is the official mascot of Real Salt Lake. Club anthem In 2011, Branden Steineckert, drummer of punk band Rancid and a supporter of Real Salt Lake, composed the song "Believe" in honor of the club. Initially posted on YouTube, the song has since been adopted as the team's official anthem, being sung at the beginning of every home game, at the end of every home game if the result is a win, as well as after all goals scored by RSL. The song used prior to the anthem was the woohoo yeehoo lyrics from The Sweet Escape by Gwen Stefani. Revenue and profitability As Real Salt Lake is a small-market team, one of the team's biggest challenges is bringing in enough revenue to remain competitive. Opening Rio Tinto Stadium in October 2008 provided a significant revenue boost to the team. Real Salt Lake went from 4,000 season-ticket holders before October 2008, to 8,750 in 2012, 10,000 in 2013, and 15,000+ in 2016. Sponsors RSL has a multimillion-dollar sponsorship deal with LifeVantage. It previously had a multimillion-dollar deal with Xango a nutritional supplements company