BUENOS AIRES (AP) Boca Juniors slipped to 10th place in Argentina's first division four points from the lead after losing 3-0 to Olimpo on Sunday.
Argentinos Juniors leads the standings after six rounds of matches of the Torneo Inicial tournament following its 1-0 win Saturday against All Boys. River Plate trails by six points in 13th after Sunday's convincing 3-0 defeat of Tigre.
In Sunday's other games, Arsenal won 1-0 against Quilmes to take second place and San Lorenzo overcame Rosario 2-0 to move into third.
In Saturday's matches, Estudiantes drew 1-1 against Belgrano, Godoy Cruz won 1-0 against Colon, Rafaela defeated Gimnasia 2-1 and Racing drew 1-1 with Lanus.
On Friday, Velez overcame Newell's Old Boys 3-0.