Diego Simeone's decision to send on Correa for the ineffectual Thomas Lemar early in the second half reaped a rapid return, the forward finding the net just 97 seconds after his introduction off the bench.

After blocking a clearance from the dithering Alex Moreno, the Argentina international reacted quickly to seize on the loose ball and then round goalkeeper Joel Robles, allowing him to convert into an unguarded net.

Correa's classy finish put his side on course for a first triumph on the road since a 2-0 result against Real Mallorca on 25 September.

He also had a hand in their second, too, as it was his low cross that allowed Morata, who had a header correctly ruled out for offside during the first half at Benito Villamarin, to turn the ball in at the front post.

Betis did get a late consolation in added time, Marc Bartra converting from inside the penalty area with the aid of a deflection, the goal given after a lengthy VAR consultation that infuriated an already raucous home crowd.