Southampton manager Nathan Jones said he would be "up till 3am" watching Everton ahead of their showdown on Saturday.
The Saints stunned Manchester City as they brushed aside Pep Guardiola's side to move into the last four of the Carabao Cup.
Sekou Mara and Moussa Djenepo found the back of the net in their triumph as their first-half goals were enough to seal their place in the semi-finals - where they will play Newcastle United over two legs.