Boca Juniors opened its Clausura campaign in exciting fashion over the weekend as the club came from two goals down to snatch a 3-2 win over Quilmes.
Goals from Wilfredo Olivera and Cristian Menendez in the first 10 minutes put Boca down two goals, but Walter Erviti pulled one back for the hosts before halftime.
Guillermo Burdisso tallied the equalizer in the 67th minute, but Boca's Matias Caruzzo was sent off in the 78th minute and conceded a penalty kick to Quilmes, which Martin Cauteruccio failed to convert.
The miss proved costly just two minutes later as Burdisso netted the winning goal for Boca despite the home side playing with just 10 men.
Union and Arsenal kicked off the new campaign on Friday as the two teams played to a 1-1 draw after Arsenal's Dario Benedetto notched the equalizer in stoppage time with his team down to 10 men.
The other contest on Friday saw Velez Sarsfield secure a 1-0 win at Argentinos Juniors with Lucas Pratto netting the only goal just before halftime.
Tigre scored three unanswered goals to earn a 3-1 win at Estudiantes, All Boys and Godoy Cruz played to a 1-1 draw, while San Martin and San Lorenzo finished in a 0-0 stalemate.
Atletico Rafaela started the season well with a comfortable 3-0 home win over Racing that saw Lucas Bovaglio and Sebastian Grazzini both net first-half penalty kicks, Newell's got two goals from Ignacio Scocco in a 3-1 triumph at Independiente and River Plate was able to win 2-1 at Belgrano despite having a player sent off in the opening minute of the second half.
Monday's contest saw four different scorers power Lanus to a 4-0 win over Colon, lifting Guillermo Barros Schelotto's side to the top of the table on goal difference.