MADRID, Jan 3 (Reuters) - An injury-time goal from Real Zaragoza striker Sergio Garcia earned his side a heart-stopping 3-2 aggregate victory at home to third division Pontevedra in the King's Cup on Thursday. Zaragoza, who lost the first leg 1-0, looked to be heading out of the Cup when striker Igor de Souza put Pontevedra ahead from the penalty spot in the 18th minute. Needing to score three goals to make it through to the next round, Zaragoza piled forward into attack, but did not manage to level the game until Diego Milito scored from the spot eight minutes into the second half. They were given further hope when Ricardo Oliveira lashed home with 17 minutes to go, but Pontevedra looked as though they would hold out and win through on the away goals rule until Garcia headed home a rebound deep into stoppage time to make it 3-1 on the night. Zaragoza's win was soured by the last-minute sending off of Milito who will miss Sunday's league match against Real Madrid at the Bernabeu. Victor Fernandez's side will be joined in the next round by 15 other Primera Liga sides including basement outfit Levante who claimed an equally dramatic victory over Almeria in Thursday's other tie. Trailing 2-1 after the first leg, Almeria looked to have secured a place in the last 16 when Ruben Pulido headed in from a corner three minutes into added time. But Levante defender Alvaro cut short the home side's celebrations when he drilled home from the edge of the area with the last kick of the game to earn his side a 1-1 draw on the night and a 3-2 win on aggregate. Holders Sevilla, last season's losing finalists Getafe, Real Madrid and Barcelona were among the sides to secure their places in the last 16 on Wednesday.