The research by Mexican newspaper El Economista showed Brazilian sides had changed managers every 15 matches on average since 2002.

Rio de Janeiro giants Fluminense have the worst record, with 41 changes over the period.

Those in charge of US and Canadian Major League Soccer clubs had the best survival rate, averaging 88 matches before being axed, followed by England (80).

Other leagues surveyed were the top flights in Colombia and Mexico, whose clubs changed managers every 27 matches, Argentina (34), Italy (41), Spain (42), Germany (54) and France (72).

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