The 22-year-old had been heavily linked to a move to Barcelona, but has opted to join the Europa League champions and has passed his medical.
Sevilla has announced that Luciano Vietto has completed a medical and is set to seal a move from Atletico Madrid.
The 22-year-old striker has been heavily linked with both Barcelona and the Europa League holder, though Atletico president Enrique Cerezo claimed this week that the Spanish champion had not made an offer.
Vietto is now set to complete a move to the Ramon Sanchez Pizjuan and has been granted permission to train with the Sevilla first team while his transfer is finalized.