UEFA Europa Leagues are a series of five matches played between the UEFA Champions League and the UEFA Europa Club Championship, the second tier of the English football calendar.
The UEFA Europa league, which was introduced in 2013, is the most prestigious competition in the competition, and the two top teams from the group stages advance to the knockout stages.
In this edition of The Football Italian, we look at the Real Madrid v Manchester United Champions League encounter on Monday night, and examine why it is the first meeting between the two teams since the 2016-17 season.
Real Madrid were crowned champions of the European Champions League in 2017 and will be aiming to qualify for the 2018-19 campaign with victory over Manchester United.
However, this will be the first time that Real Madrid have faced a Manchester United side in a UEFA Europaleague tie since 2010.
This year, Real Madrid lost 1-0 at the hands of rivals Barcelona in the quarter-finals of the competition.
Manchester United also lost 2-1 to Barcelona, which marked the first defeat in a Champions League group stage match for Manchester United since 2012.
In addition to the Champions League knockout matches, the other matches played at the Santiago Bernabeu between the sides have also been crucial in determining who has advanced to the quarter final stage.
Real Madrid will face Juventus on Sunday, and it is not yet known if both Manchester United and Barcelona will play again.