City were comfortable winners for their second Champions League group game at the Velodrome on Tuesday night.
OM coach Villas-Boas was hammered by the local press for his tactics, particularly a defensive back five.
Thuavin remarked: “We didn't manage to risk anything.
"Honestly, when you spend the entire game defending in the last 30 metres and you have 70 metres to cover to score a goal, it's hard to have the legs to do it."
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