Steve Nash played his 10th game for the Lakers Tuesday night (maybe now some Lakers fans will finally let go of the medical retirement stuff that was never going to happen anyway). And he aggravated his nerve root injury. Again. Nash tried to play through it but that didn’t work. He said the back issue that leads to tightness in his hamstring bothered him before the game; he played for a half but looked slow and was ineffective. Nobody was giving specifics to the Los Angeles Times but it sounds to me like he sits out Thursday against Oklahoma City and returns after the All-Star break.