Argentina: River of red cards, Sanchez injured
BUENOS AIRES, Sept 23 (Reuters) - River Plate's unhappy season continued when they had two players sent off and lost teenage striker Alexis Sanchez to injury in a 4-1 defeat at promoted Tigre on Sunday.
Former Argentina forward Ariel Ortega was dismissed in the 85th minute for a second yellow card and substitute Rene Lima was ordered off in stoppage time for pushing an opponent after only three minutes on the field.
Chilean international striker Sanchez, 18, went off after only seven minutes with an injury to his left ankle and team doctor Luis Seveso said first indications were he had suffered ligament damage.
Without their new signing from Colo Colo, who has been an instant hit at the club, River slumped to their first defeat against Tigre since 1947.
Roman Martinez opened the scoring after nine minutes, Matias Gimenez scored the second on the hour and Paraguayan striker Nestor Ayala added two more.
Marco Ruben, Sanchez's replacement, replied for Daniel Passarella's team in the 66th minute.
River, enduring their longest title drought since the 1980s, team fell seven points behind leaders Independiente and dropped from third to seventh as the Apertura championship passed the halfway mark.
River's season has been plagued by internal feuding amongst their own fans, which caused their opening match to be postponed, as well as inconsistency on the field.
Tigre, returning to the top flight after a 28-year absence, moved up to fourth with 17 points.
Independiente, 3-0 winners over Olimpo on Saturday, lead with 22 points from 10 games.
South American champions Boca, who are second, dropped two points behind after being held 2-2 at home by lowly Gimnasia-Jujuy.
Osvaldo Miranda headed the visitors in front after 10 minutes and, although second-half goals from Mauro Boselli and defender Gabriel Paletta put Boca ahead, Marcelo Berza's last-minute goal snatched a point for Gimnasia.
Racing Club won their third game in a row, beating Arsenal 1-0 away with a Facundo Sava goal in the 59th minute.