Aleksandar Mitrovic is happy taking the No45 at Newcastle United.
Mitrovic also wore the same number with former club Anderlecht.
The Evening Chronicle says the reason Mitrovic took 45 at Anderlecht was because he'd asked for number nine when he joined the Belgian giants from Partizan Belgrade as a teenager.
That wasn't available, so he went for 45 because – you guessed it – four and five equals nine.