By Andrew Gould The Los Angeles Sparks appear to have lost a star player. Khristina Williams of Girls Talk Sports TV reported Tuesday morning that center Liz Cambage “wants out” of Los Angeles and “quit” the team. On Monday night, The Ball Out’s Mike Robinson said the four-time WNBA All-Star was preparing to leave the team she joined this season. Cambage has averaged 13.0 points, 6.4 rebounds, and 1.6 blocks in 25 games with the Sparks, who are tied for third in the Western Conference at 12-15. This reported walkout creates further turmoil for an organization that fired head coach Derek Fisher…