Goalkeeper Jonny Walker posted a shutout in the first leg of the Chilean League quarterfinals Tuesday. His team, Universidad Catolica, defeated Santiago Wanderers, 4-0. The return leg is at Catolica, so Wanderers would have to win that game by five goals to advance. Walker diffused a breakaway in the fifth minute and Catolica got on the board in the 15th minute with Milovan Milosevic's header. Forward Arturo Norambuena scored two goals for Catolica and Cristian Alvarez added one in the 90th minute after two Wanderers players had been sent off.