The Los Angeles Lakers are an American professional basketball team based in Los Angeles that competes in the National Basketball Association (NBA). Since 1999, the Lakers have played their home games at Crypto.com Arena. The franchise began in 1946 as the Detroit Gems of the National Basketball League (NBL). After one season, a new ownership relocated the team to Minneapolis, Minnesota, and renamed the team as the Minneapolis Lakers. The Lakers won the 1948 NBL championship before joining the rival Basketball Association of America, where they won the 1949 BAA championship. Following the merger of the NBL and the BAA into the NBA in 1949, the Lakers won four of the next five NBA championships. After struggling financially in the late 1950s, they relocated to Los Angeles before the 1960–61 season. The Lakers went on to lose all of their six appearances in the NBA Finals in the 1960s, despite the presence of Elgin Baylor and Jerry West. In 1972, the Lakers compiled a 33-game winning streak, the longest streak in U.S. professional team sports, and won their sixth title, under coach Bill Sharman. The Lakers' popularity soared in the 1980s when they won five additional championships during a nine-year span with the help of Hall of Famers Magic Johnson, Kareem Abdul-Jabbar, James Worthy and coach Pat Riley, the franchise's all-time leader in both regular season and playoff games coached and wins. Two of those championships during that span were against their arch-rivals, the Boston Celtics. With the help of Shaquille O'Neal, Kobe Bryant, and Hall of Fame coach Phil Jackson, the Lakers played in seven NBA Finals between 2000 and 2010, winning three of them consecutively from 2000 to 2002, losing the next two in 2004 and 2008, and winning in 2009 and 2010; the last three appearances were without O'Neal.