Hernan Crespo’s Al Ain steamrollered 10-man Yokohama F-Marinos 5-1 in the Asian Champions League final return leg to lift the trophy for the second time in their history on Saturday. The hosts trailed 2-1 from 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 half-time. Al Ain, the oil-richUnited Arab Emirates’ most successful club, won the inaugural Champions League final in 2003 and were runners-up in 2005 and 2016. “It’s really difficult to describe the e…