I'm really happy to feel like a footballer again and play once more with Atletico Madrid.
'I could not have asked for anything more on my second debut, to be back playing again and to have scored a goal is fantastic'. They are two players with status, and I hope they can reach their best form as soon as possible.
The Brazil-born Spain worldwide appeared to hurt his right knee in scoring, and received lengthy treatment on the sidelines, although he played on to see another sub, Antoine Griezmann, finished the scoring with a deflected free kick in added time.
Vietto, who failed to score in 10 games this season for Atletico, had found himself relegated down the pecking order there after Diego Costa's return to the club from Chelsea.
"His departure annoys me because his performances haven't been accompanied by goals in a team that doesn't wait". He brings speed, strength and physicality, which is what we expected of him.
He was the Stamford Bridge club's top scorer with 20 Premier League goals as Chelsea won the title last season, before being sensationally frozen out by manager Antonio Conte in the summer. "The team did well in a tough game, which is what makes me happiest".
The second leg against third-tier Lleida Esportiu is on Tuesday, with Atletico hosting Getafe in the league on Saturday.