Spanish forward Sandro has completed his move to Sevilla FC from Everton after going through a medical on Wednesday.
The Spanish club confirmed the 22-year-old will stay on loan until the end of the season.
In a statement on their website, the La Liga club said: "At just 22 years old the Canary Island native has the chance to recapture his spectacular growth in past seasons and find a place in Vincenzo Montella's attacking line-up."
Tied to Goodison Park until June 2021, Sandro netted only once in the Europa League and has failed to score a single league goal since his £5.2m transfer from Malaga last summer.