Greece's Stefanos Tsitsipas, on court left, competes against Slovakia's Lukas Klein, on court right, during a Davis Cup World Group 1 first round, at the Panathenaic stadium, in Athens, Greece, Saturday, Sept. 16, 2023.,Image: 805732639, License: Rights-managed, Restrictions: This content is intended for editorial use only. For other uses, additional clearances may be required., Model Release: no, Pictured: Lukas Klein,Stefanos Tsitsipas