Hernan Crespo's Al Ain steamrolled 10-man Yokohama F. Marinos 5-1 in the Asian Champions League final return leg to lift the trophy for the second time in its history on Saturday.
The host team trailed 2-1 after the away fixture, but two goals from Soufiane Rahimi, a Kaku penalty and Kodjo Laba's late double ensured a 6-3 aggregate victory after Yokohama goalkeeper William Popp saw red just before halftime.
Al Ain, the oil-rich United Arab Emirates' most successful club, won the inaugural Champions League final in 2003 and was runner-up in 2005 and 2016.