Rodriguez explained Tuesday how he had planned to ask for Lopez's hand in marriage for about six months and how he wanted to ask the big question on the beach.
"I was nervous and I was excited," the former baseball star said. " I rehearsed three days in a row because I wanted the sunset to be perfect."
Rodriguez said that despite being unable to nail down the exact time when the sun would set, the proposal was still a success. Fallon displayed a photo from the moment and pointed out how Rodriguez was wearing his World Series ring as he got down on one knee.
"I've only worn this ring probably a handful of times, but I said, 'This is a big moment,'" Rodriguez said.
Rodriguez, 43, and Lopez, 49, announced in March that they became engaged after dating since 2017.