BUENOS AIRES, Argentina (AP) Newell's Old Boys lost 2-1 to archrival Rosario Central one of Argentina's most intense derby matches but still kept the lead in Argentina's first division.
Hernan Encina scored the winner in the 28th, firing just inside the post from close range.
Alejandro Donatti opened the scoring for Central with a header in the 11th and Maxi Rodriguez equalized four minutes later.
Newell's has 26 points after 12 rounds, three clear of San Lorenzo and Arsenal.
In other Sunday matches, Tigre had a 2-1 comeback win over Arsenal with Cristian Bordacahar scoring the clincher in the 77th. Milton Caraglio put Arsenal ahead in the 65th and Matias Perez Garcia equalized in the 75th.