This year’s Copa Argentina has already claimed its fair share of shocks but Unión ensured that they weren’t another with a penalty victory over Nacional B side Nueva Chicago in Banfield.

After a goalless 90 minutes of few clear chances, the tie was forced into a shootout and as the Primera club held their nerve, Chicago choked. Two costly misses left Lucas Gamba to slot in the winner and set up a last 32 clash with Lanús.