Cobreloa and Sporting Cristal struggling
South American round-up
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RIO DE JANEIRO, Aug 18 (Reuters) - Chilean champions Cobreloa crashed to a shock 4-1 defeat against modest San Felipe at the weekend while Colombian striker Faustino Asprilla began yet another comeback, this time with his hometown club Tulua
Champions Cobreloa, who have made an indifferent start to the Clausura championship with only four points from four games, crashed to a humiliating 4-1 defeat at San Felipe, who had not previously won.
John Ahumada and David Candia set San Felipe on their way with two goals in a five-minute spell midway through the first half.
Argentine Juan Cruz Real added a third in the 36th minute and completed the scoring three minutes from time after Juan Carlos Madrid had pulled a goal back for the Desert Foxes.
Cobreloa were without four players who are in China with the national team for Wednesday's friendly.
Universidad de Concepcion continued their good run by coming from behind to win 2-1 away to Huachipato in a game that produced three red cards -- Daniel Campos and Luis Pena for the home team and Diego Guili for the visitors.
Hector Mancillo put Huachipato ahead in the 23rd minute but in the second half Ricardo Viveros equalised from a penalty and Luis Figueroa scored the winner.
Argentina Marcelo Espina and Uruguayan Silvio Fernandez scored second half goals to give Colo Colo, the country's most popular club, a 2-1 win over Palestino.
Volatile striker Faustino Asprilla made an unremarkable debut for Tulua as the provincial side won 2-1 at Medellin.
The former Colombia international, who played for Universidad de Chile in the first half of the year, came on as a substitute early in the second half.
John Hinestroza scored a late winner for Tulua, where Asprilla also played a handful of games last year.
Deportivo Cali, led by eccentric one-time chemicial engineer and former national team coach Javier Alvarez, stayed top of the table after beating Bucaramanga 3-2 for their fourth win in five outings.
Millonarios, who beat Centauros 2-0, are second. Jorge Lopez Ceballero opened the scoring with a brilliant free kick and Andres Perez made sure of the points.
Champions Caldas beat America 1-0 with a second-half penalty converted by Arnulfo Valentierra. Both teams played the second half with 10 men after Ruben Velasquez of Caldas and Javier Ferreira of America were sent off for fighting.
Sport Boys goalkeeper Johnny Vegas missed a second-half penalty with the score at 2-2 but his team still went on to beat Melgar 3-2 away when Jose Corcuera struck with eight minutes left.
Sporting Cristal, who won the first stage, are still winless in the second stage after being held to a 0-0 draw at home by Cienciano.
Peruvian international midfielder Henry "The Duck" Quinteros made his debut for Cristal after his surprise move from their arch-rivals Alianza Lima.
Provincial club Alianza Atletico top the second stage with seven points from three games after they beat Universitario, who are coached by Peru's 1978 World Cup goalkeeper Ramon Quiroga, with goals in each half from Pedro Garcia and Alex Becerra.
Deportivo Wanka, another provincial side, are second after two goals from Rodolfo Minan brought them a 2-1 win over Estudiantes de Medicina.
Deportivo Quito, who were hammered 6-1 by lowly Manta last week, bounced back to beat the same opponents 3-0 and stay level on points with Liga de Quito at the top of the second stage.
Johnny Baldeon scored twice and Luis Saritama once as Deportivo avenged last week's humiliation.
Franklin Salas, Paraguayan Virgilio Ferreira and Luis Gonzalez scored to give Liga de Quito a win by the same score over Aucas.
Argentine-born Ariel Graziani scored his 17th goal of the championship to give Barcelona a 2-1 win at Tecnico Universitario and lift them to third place ahead of army club El Nacional, who went down to a late Carlos Quinonez goal at Deportivo Cuenca.
Cerro Porteno beat Tacuary 2-1 to overhaul Libertad at the top of the second stage. Libertad were held to a goalless draw by Olimpia.
Defending champions Caracas FC won 2-1 at Carabobo to go top of the Apertura, the first stage of the championship, thanks to goals by David McIntosh and Rafael Castellin. Jonathan Laurens replied for the home team.