![Lionel Messi: PSG boss Mauricio Pochettino reveals knee injury was the reason for substitution](https://cdn.newsserve.net/en/knowledge/Mauricio-Pochettino_20190130.jpg)
Lionel Messi: PSG boss Mauricio Pochettino reveals knee injury was the reason for substitution
Paris St-Germain boss Mauricio Pochettino reveals a knee injury was the reason he substituted Lionel Messi during Sunday's win over Lyon.
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