A Fernando Torres double helped Atletico Madrid comfortably beat Elche 3-0 to secure Copa del Rey progression with a 4-1 aggregate triumph.
Atletico were only able to come away from last month's first leg with a 1-1 draw, but they never looked in danger of being on the end of an upset at the Wanda Metropolitano, with Torres scoring twice in a strong performance.
Diego Simeone refused to jeopardise progression by playing an inexperienced team like he did in the away leg and his side looked focused as a result in making it four wins from their last five games.
Initially they wasted opportunities and began to look frustrated, but Jose Gimenez finally ended Elche's resistance with a header at the back post in the 31st minute.
And their second followed shortly after, with Torres producing a fine finish for his first goal at the Wanda Metropolitano.
The chances continued to flow for Atleti and although wasteful finishing again surfaced after the break, Torres finally doubled his tally in the 68th minute to make absolutely sure of their qualification for the last 16.