France forward Kylian Mbappe says "things and people made me unhappy" in his final year at Paris St-Germain.
Mbappe, 25, will join Real Madrid on a five-year deal when his Paris St-Germain contract expires on 30 June.
PSG's all-time leading goalscorer refused to sign a year's extension to his contract last August leading to a stand-off which saw him train away from the first-team.
"At PSG...
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