Diego Simeone hailed the "quality" of Fernando Torres after the veteran forward fired Atletico Madrid into the Copa del Rey last 16.
Torres scored twice as Atletico saw off third-tier Elche 3-0 on Wednesday and 4-1 on aggregate at the Wanda Metropolitano midweek.
The 33-year-old's brace opened his account for the season, having failed to score in all competitions prior to Wednesday.
"Fernando did well as goals are so important for a forward," Simeone said.
"He took maybe the two most difficult chances he had, with a lot of quality."
Atletico centre-back Jose Gimenez was also on target, opening the scoring in the 31st minute in the Spanish capital.