Pierre-Emerick Aubameyang scored a goal in each half as Arsenal eased to a 4-2 win over Vorskla in the Europa League.
Willian netted the only goal of the game to hand Chelsea 1-0 victory in their UEFA Europa League tie against POAK at the Toumba Stadium on Thursday evening.
A third continental club competition that would commence in the 2021-22 season is pending approval from Uefa, according to the European Club Association (ECA).
Arsenal will face Sporting CP in Group E of the Europa League, while Chelsea take on PAOK and BATE while AC Milan meet Real Betis.
Atletico Madrid edged out Real Madrid 4-2 after-extra-time in an enthralling encounter in the Super Cup final on Wednesday evening at the A Le Coq Arena in Estonia.
Teams playing in the Champions League and Europa League in 2018-19 will be able to field a fourth substitute in matches that go to extra time, Uefa has announced.
Watch as Antoine Griezmann scored twice as Atletico Madrid won the Europa League with a 3-0 victory over Marseille in Lyon on Wednesday.
Antoine Griezmann scored twice as Atletico Madrid defeated Marseille 3-0 in the Europa League final in Lyon on Wednesday evening.
Real Madrid fan Rafael Nadal says he only wore an Atletico Madrid shirt because he was cold.
Even though his team was helped by a controversial late decision to reach the Europa League final, Marseille coach Rudi Garcia wants the video assistant referee (VAR) introduced.