Jefferson Montero has signed a four-year deal with Swansea City.
The winger has penned an extension to his original deal until 2020, with his current contract due to expire in 2018.
Arriving from Mexican club Morelia, the Ecuadorian has made 63 appearances for Swansea, with his blistering pace giving full-backs up and down the Premier League recurring nightmares.
His first league goal came in the 2-0 win over Stoke in May 2015.