Olympiacos' head coach Pedro Martins (L) and Burnley's head coach Sean Dyche shake hands defore the first leg match of UEFA Europa League play-offs between Olympiacos and Burnley at the Georgios Karaiskakis Stadium in Piraeus, Greece, Aug. 23, 2018. Olympiacos won 3-1. (Xinhua/Panagiotis Moschandreou)???