April 27, 2018 - Barcelona, Catalonia, Spain - DOMINIC THIEM (AUT) returns the ball to Stefanos Tsitsipas (GRE)  in their quarter final of the 'Barcelona Open Banc Sabadell' 2018. Tsitsipas won 6:3, 6:2 (Credit Image: © Matthias Oesterle via ZUMA Wire)