Real Madrid needed extra time to defeat Celta Vigo in the Copa del Rey round of 16, but the extra half hour shouldn't overshadow some of the positives coming out of the match. For one, Kylian Mbappe is finally looking like the player that was promised when Los Blancos signed the World Cup winner on a free transfer this past summer.

Real Madrid responded to their Super Cup defeat to Barcelona with a 5-2 victory of their own — although it was not an entirely smooth ride

Brazilian teenage striker Endrick came off the bench to score two goals in extra time and help Real Madrid rescue a hard-fought 5-2 win over Celta Vigo on Thursday that booked them a place in the Copa del Rey quarter-finals.