Lyon
On 26 June 2017, Traoré left Chelsea to join Ligue 1 side Olympique Lyonnais on a five-year contract for an initial transfer fee of €10 million (£8.8 million), plus potential add-ons. Chelsea reportedly inserted a buy-back clause into Traoré's contract and would receive 15 per cent of any profit made by Lyon on the fee should they sell Traoré in the future. Chelsea would also have first refusal should Traoré move again.