Photos of the Day: Starlings and Farmers

Athens, Greece

Ajax fans try to shield themselves from flames during clashes with Greek riot police prior to the start of the UEFA Champions League football match between AEK Athens FC and AFC Ajax

Photograph: Aris Messinis/AFP/Getty Images

Moscow, Russia

Sophia social humanoid robot developed by Hong Kong-based company Hanson Robotics at the 2018 Synergy Global Forum at Olimpiysky Arena

Photograph: TASS/Barcroft Images