S.America Roundup: Players & police clash in Bolivia
Cerro Porteno beat arch-rivals Olimpia 3-1 in a fiery meeting of Paraguay's biggest clubs in which two players, both coaches and a ball boy were sent off.
Aurora beat local rivals Wilstermann 1-0 in a Cochabamba derby which ended in uproar after the winners had Eduardo Zenteno sent off late in the game.
Centeno dallied over leaving the field and around one dozen police came on to hurry him up.
Other Aurora players leapt to Centeno's defence and aimed karate kicks at the police, who responded by using pepper spray. At one point, Aurura goalkeeper Silvio Dulcich picked up a corner flag to use as a weapon against the officials.
The referee appeared to abandon the game at one stage but changed his mind after Wilstermann protested.
Dulcich was sent off, the game was re-started and Aurora held on for a win.
The match was part of an end-of-season tournament to decide Bolivia's final representatives in next year's Libertadores Cup, Aurora won the Clausura tournament, their first major title, last week.
Olimpia had two players sent off before halftime as they lost a stormy derby 3-1 to bitter rivals Cerro Porteno.
Cesar Ramirez gave Cerro a fourth-minute lead and tempers flared when Marco Lazaga equalised just after the half hour and appeared to provoke the Cerro bench with his celebration.
The incident sparked a brawl involving players and officials from both sides, which held up play for seven minutes and ended with Olimpia coach Ever Almeida and his Cerro counterpart Pedro Troglio being sent off along with several other members of the respective benches.
Olimpia then had Edison Gimenez and Lazaga sent off in quick succession, both for second yellow cards.
Paraguayan media said a ball boy was also sent off in the second half and another fight broke out in the players' tunnel after the game.
Second half goals from Erwin Avalos and Celso Ortiz gave Cerro their sixth win in eight meetings against their old rivals.
Sol de America, who beat Silvio Pettirossi 3-1, lead the Apertura championship on goal difference from Libertad, who were held 2-2 by 12 de Octubre.
Defending champions Boyaca Chico missed out on the last eight of the Clausura championship when they lost 1-0 at home to Atletico Nacional, Luis Alberto Perea scoring the only goal.
Chico are six points behind eighth-placed La Equidad with one match to play.
Leaders Tolima, who won 1-0 at Envigado, and second-placed Medellin, who beat La Equidad 2-1, have already qualified.
Deportivo Quito stayed three points clear of Barcelona in the championship's final stage after th