Ajax are now just one game away from regaining the Eredivisie title after bouncing back from Champions League disappointment with a convincing win on Sunday.
The Dutch side were just seconds away from the Champions League final this week after leading Tottenham 3-2 on aggregate deep into injury time at the Johan Cruyff Arena.
But with what was almost the last kick of the game, Lucas Moura completed his hat-trick to seal a famous comeback for the visitors, who progressed on away goals having trailed 3-0 and now meet Liverpool in the decider.