Boca Juniors remain top of Argentina's Clausura after a 1-1 draw between Newell's Old Boys and Arsenal Sarandi on Monday.
The home side, who would have joined Boca on 21 points with a win, took the lead in the 47th minute through Dario Benedetto.
However, Newell's Old Boys, who started the game just a point behind the leaders, levelled 11 minutes into the second half through Victor Figueroa.