Benjamin Bourigeaud scored a hat-trick for Rennes, including a pair of penalties, but goals from Luka Jovic and Rafael Leao ensured Milan were never really in danger of blowing a 3-0 lead from the first leg.
Luka Jovic fired AC Milan to a comeback 3-2 victory at Frosinone on Saturday with a late winner which moved his team to within five points of Serie A leaders Inter Milan
Luka Jovic saved a point for AC Milan at Salernitana with his last-gasp leveller in Friday's 2-2 draw at Serie A's bottom club.
AC Milan bounced back from Champions League disappointment with Saturday's 3-1 win over Frosinone which moved them to within four points of Serie A leaders Juventus.
It is the second European trophy for West Ham after they won the now defunct Cup Winners' Cup 58 years ago with a team including England World Cup heroes Bobby Moore and Geoff Hurst
AC Milan missed the chance to go second in Serie A on Saturday after falling to a 2-1 defeat at Fiorentina, ending a recent upturn in form for the reigning champions
La Liga: Real Madrid were held to a goalless draw at Villarreal on Saturday despite the return from a lengthy injury absence of Gareth Bale
La Liga: Real Madrid strengthened their already-commanding position in the title race on Sunday by defeating Atletico Madrid 2-0 to move 13 points clear of the defending champions.
Luka Jovic of Real Madrid could face a six-month sentence for breaching mandatory COVID-19 isolation protocols upon his return from Madrid to Serbia.
Maurizio Sarri raised eyebrows with his decision to leave Eden Hazard out of the starting line-up, but he said he had no choice but to rest the Belgian star.