Boca Juniors needed a penalty shootout and two saves from goalkeeper Alvaro Montero to escape a scoreless draw with Velez Sarsfield, advancing to face Racing Club in the Copa Argentina quarterfinals.
Boca Juniors advanced to the Copa Argentina quarterfinals on September 2 after a scoreless draw with Vélez Sarsfield went to penalties at Estadio Mario Alberto Kempes in Córdoba, with Boca winning the shootout 4-3.
Neither side broke through in 90 minutes of a tightly contested Round of 16 match, sending the tie directly to a penalty shootout under the tournament's single-elimination format.
Goalkeeper Álvaro Montero was the decisive figure in the shootout, saving two of Vélez's penalty attempts to give Boca the edge it needed to convert its own kicks and advance.
The win sends Boca into the tournament's quarterfinals, where it will face Racing Club, one of the other four teams remaining in the competition.
The Copa Argentina runs alongside the country's league season and offers qualification for continental competition to its eventual champion, giving mid-season knockout matches like this one added weight for clubs still competing on multiple fronts.
For Boca, the result keeps the club alive in a second competition this season while it continues to manage its league and Copa Libertadores commitments in parallel.