BUENOS AIRES (Reuters) -River Plate were held 0-0 at home by San Lorenzo in the Argentine Clausura tournament on Sunday as Marcelo Gallardo's side remained unbeaten in the campaign and two points clear of their city rivals at the top of Group B.
The hosts controlled proceedings from the outset and thought they had taken the lead after 15 minutes but Enzo Perez's long-range effort was ruled out for offside.
