Liverpool v Osasuna - Pre-Season Friendly Official Premier League Nike Strike Aerowsculpt 21/22 during the pre-season friendly match between Liverpool FC and CA Osasuna at Anfield on August 9, 2021 in Liverpool, England. Liverpool England breton-liverpoo210809_npyDF PUBLICATIONxNOTxINxFRA Copyright: xJosexBretonx

There are a number of things that footballers can appear to get away with at times when playing on the pitch.

Of course, if they make a mistake in a game they will be berated when fans are in the stands or via the use of social media (which is unacceptable, really) as fans will not let them forget about it for a little while.

However, the sport will also allow players to be able to go from villain to hero in the space of 0.0000001 seconds at times, as players can make up for mistakes by scoring goals or by keeping the ball out of their own net; thus leaving all as forgiven and forgotten, unless it cost them when using to try and enjoy the best betting experiences that are possible.

One thing, though, that will never be forgiven by fans of a football club and will be seen as something that is about as big as punishable as death is joining a rival football team, especially when the two compete for the biggest honours.

Despite the fact that many football supporters would call it the ultimate betrayal and one that many would find hard to top, there have been a number of footballers to have crossed that divide over the years – and in all likelihood – there will be many that cross it in the future, as well. Good luck to those who decide to do so!

Hakan Calhanoglu is one of those footballers to have made the decision to do so most recently, having decided to leave AC Milan on a free transfer for Inter Milan. The fans of I Rossoneri will not have been pleased with that one!

Of course, one of the most famous ones is when Luis Figo decided to swap FC Barcelona for Real Madrid in 2000. The Portuguese winger became Public Enemy No 1 at the Nou Camp when Los Blancos visited, with his first match back being rather raucous. He did well to stay away from the touchline when the ball went out for a throw, but his ability to take a corner cost him as fans threw a pig’s head at him.

Sol Campbell stunned the world of football when he left Tottenham Hotspur on a free transfer to join Arsenal, whilst Carlos Tevez did the same after he joined Manchester City from Manchester United. Remember Nicky Barmby swapping Everton for Liverpool in 2000? Many on Merseyside do.