Ty Law is lovin' Ryan Day at Ohio State -- after all, his Wolverines have beaten the coach four straight years -- but he tells TMZ Sports even if he weren't a Michigan alum ... he'd seriously encourage the school to keep the guy on its sidelines.
Law made it clear on Wednesday -- just a few days after the Buckeyes dropped another game to its hated rival, 13-10 -- that despite Day's recent inability to defeat UM, he would still rather roll with the 45-year-old for the foreseeable future.