The Daily Mail says Chelsea sent French scout Guy Hillion to Monacoâ€™s Stade Louis II on Sunday to watch Marseille starlet Thauvin.
But the youngster failed to get a ringing endorsement from former Chelsea defender Frank Leboeuf, who was commentating for RMC Sport.
"Thauvin didnâ€™t exist for an hour. There was one moment where he had the ball and he tried to knock it past the defender and go round the other side, and you wonder where heâ€™s going.
"Wait for your team-mates to arrive, keep the ball. Football isnâ€™t played with 11 balls."
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