BT Sport will remain the exclusive UK home of all UEFA Champions League and UEFA Europa League football following a competitive auction process.
The three year renewal will be the first time all live games, highlights and in-match clips of both competitions will be together exclusively.
The 2018/19 UEFA Champions League will have a minimum of four participating teams from each of England, Spain, Germany and Italy, which will ensure more games between the top European teams.
UEFA Champions League ‘double header’ nights will be broadcast in conjunction with live matches, which will kick off at both 6pm and 8pm during the Group Stage.
The games will continue to be made available in 4K ultra high definition with Dolby Atmos sound, and via the BT Sport App, as well as enhanced online coverage and both finals available for free on social media.
John Petter, Consumer CEO at BT, said: “We are delighted to have renewed these rights.
"The UEFA Champions League and UEFA Europa League are two of the best competitions in the world and we would like to thank UEFA for choosing us as their exclusive broadcast partner in the UK.”
Guy Laurent Epstein, UEFA marketing director, said: “UEFA is delighted to have extended the relationship with BT Sport for a further three seasons, taking our partnership to 2021.
BT Sport has proved to be an innovative broadcast partner, pushing the boundaries and covering the UEFA Champions League and UEFA Europa League in new ways.”