Over the years, we've seen plenty of superstitious reasons to get rid of things at football clubs. There was Vincent Tan, the owner of Cardiff City, wanting to only sign players with the number eight in their birthdays; the same Vincent Tan who was caught booing his own team.
Then there was the magnificent Massimo Cellino at Leeds, who sacked Paddy Kenny for being born on the 17th of May. 17, an unlucky number for Cellino.
Now we can add the new Rangers manager Pedro Caixinha to the list. According to the Daily Record, he's banned his squad from wearing boots with the colour green on them.
Why? Because green is the colour of Celtic! The Hoops finished 39 points ahead of their arch-rivals last season, and Caixinha wants that gap to close via superstition.
From today, no one will wear boots of that colour because it is the colour of Celtic.
The slogan ‘We are the People’ will be stamped on the walls for both our players and opponents to feel the strength of Rangers.
Because nothing will close a 39 point gap more than a change in a boot colour.
Despite being involved in one of the most aggressive rivalries in football, Caixinha also told the paper that he hasn't had too much trouble in Glasgow.
The Rangers fans are full of hope, the Celtic fans are upbeat and excited and that’s normal because they have won six titles in a row.
Only once have I been bothered. In the centre of the city, a drunk Celtic fan upset me, but it was nothing.
The centre of Glasgow is beautiful like the rest of the city.
Rangers started their 2017-18 campaign with a victory over Progres Niedercorn in the Europa League.
The Scottish season kicks off in just over a month (5th August) with the first Old Firm derby taking place in Ibrox on the 23rd of September.
Don't expect Rangers to be sponsored by Mr Green anytime soon.