It's like a scene out of "Groundhog Day" ... 'cause Bill Murray is celebrating UConn winning a national championship once again -- sharing an awesome moment with his assistant coach son right after Monday's big game!!
The legendary comedian's second oldest child, Luke, is quite the basketball guru -- he joined UConn in 2021 ... and was a huge part of the Huskies' offensive success this season.
Bill has always been supportive of his kid at his previous stops like Xavier and Louisville .