Written by: Alan Martins
It's hard for fans to accept that one day the team's star player might end up wearing the jersey of their biggest rival as soon as he leaves the club. Is there loyalty in that sense? I'll leave that to you, the reader, to answer.
It's strange to see someone on the field who identifies with one club only to later play for their archrival. But they're professionals, and that's football. Financial considerations often trump love for the jersey. Sometimes a player feels uncomfortable with the environment and wants to seek new horizons. Whether due to contract expiration, disagreements, or a better salary offer, the fact is that the players below were signed directly from their rivals—the infamous turncoats. See who they are and if you remember their time at these clubs.

Corinthians from 1998 to 2002 → São Paulo from 2002 to 2004

Atlético MG from 2016 to 2017 → Cruzeiro from 2018 to 2020

Manchester United from 2007 to 2009 → Manchester City from 2009 to 2013

Palmeiras from 2015 to 2016 → Corinthians from 2017 to Present

Flamengo from 1998 to 1999 → Vasco from 2000 to 2002

Borussia Dortmund from 2010 to 2014 → Bayern Munich from 2014 to Present

Chelsea from 2004 to 2015 → Arsenal from 2015 to 2019
