Madrid: Atletico Madrid came from behind to beat third-tier Sant Andreu 2-1 at the Vicente Calderon on Wednesday and progress into the last 16 of the Copa del Rey, 6-1 on aggregate.
Alberto Carroza had fired the visitors into a shock lead as Atletico conceded for the first time at home since early October.
Atletico then passed up a host of chances to level before the break as Jose Gimenez had a goal harshly ruled out for offside, while Adrian Lopez blasted a penalty over the bar.
With such an advantage from the first-leg, Atletico boss Diego Simeone had handed a night off to the majority of his first-team regulars and had to turn to 18-year-old Hector Hernandez in his search for an equaliser.
The young forward duly delivered when he turned home Adrian`s cross 12 minutes from time.
Sant Andreu looked like they may still hold out for a famous draw, but they were cruelly denied with the last action of the game as Toby Alderweireld headed home Gabi`s free-kick deep into stoppage time.
Atletico will now face Valencia or Gimnastic in the next round.
Real Sociedad sealed their place in the last 16 with a convincing 4-0 win over Algeciras thanks to goals from Javi Ros, Haris Seferovic, Antoine Griezmann and Carlos Vela to seal a 5-1 aggregate victory.
And La Liga sides Almeria and Real Betis also progressed despite being held at home on the night by lower league Las Palmas and Lleida respectively.