John Calipari and his Arkansas Razorbacks visit Kentucky, where he spent 15 seasons and won a national title, on Saturday.

Two days before his highly anticipated return to Rupp Arena, John Calipari received a show of support from an unlikely ally. Rick Pitino, of all people, posted a video message to social media encouraging Big Blue Nation to treat Calipari with “respect and admiration” when the former longtime Kentucky coach brings his struggling Arkansas team to Lexington on Saturday.

Rick Pitino knows a thing or two about leaving Kentucky -- and returning. And now with John Calipari set to return to Rupp Arena with Arkansas on Saturday night (9 p.m., ESPN), the St. John’s coach has some advice on how Big Blue Nation should treat their former coach.