UFC star Andrei Arlovski -- the former heavyweight champion -- says he has NO PLANS to retire at age 42 ... and wants to keep bangin' away until he's 45!!!!
Arlovski made his UFC debut at UFC 28 back in 2000 -- 21 YEARS AGO -- and has been fighting consistently ever since.
He won the UFC heavyweight title in 2005 -- and has been in wars with superstars like Francis Ngannou, Stipe Miocic, Frank Mir, Stefan Struve, Alistair Overeem .