Los Angeles Lakers superstar LeBron James said he has not been surprised by the Philadelphia 76ers, who loom as a serious NBA contender in the Eastern Conference. James experienced the 76ers first hand on Sunday - the Lakers outclassed in a 143-120 defeat at Wells Fargo Center in Philadelphia. Already boasting All-Star duo Joel Embiid (37 points, 14 rebounds) and Ben Simmons (8 points), as well as Jimmy Butler (15 points) and JJ Redick (21 points), the 76ers are now seen as genuine championship challengers after acquiring Tobias Harris (22 points) in the blockbuster trade from the Los Angeles Clippers before Thursday's deadline.