A matchup of potential NBA title contenders tips off Tuesday night when the Los Angeles Clippers host the Los Angeles Lakers in a season-opening clash. The two teams, who made some of the league's most significant changes this offseason, play the first of four regular-season meetings. The Clippers added Finals MVP Kawhi Leonard, who led the Toronto Raptors to their first championship, and All-Star forward Paul George, acquired in a trade with the Oklahoma City Thunder, to bolster an already loaded roster.