When Tony Parker started running low on masterful plays, Tim Duncan was there to take over and lead the San Antonio Spurs to a 2-0 lead in the Western Conference finals. Parker had 15 points and a career playoff-high 18 assists, Duncan scored San Antonio's first six points of overtime and the Spurs bounced back after squandering a 13-point lead in the fourth quarter to beat the Memphis Grizzlies 93-89 on Tuesday night.