Rwanda's President Paul Kagame (L) arrives for a quadripartite meeting between heads of state of Angola, Rwanda, Uganda and the Democratic Republic of the Congo to discuss regional cooperation and security at Presidential Palace in Luanda, Angola, 12 July 2019. EPA/AMPE ROGERIO
Serbia's Novak Djokovic falls while attempting to return the ball to Spain's Roberto Bautista Agut during a men's singles semifinal match on day eleven of the Wimbledon Tennis Championships in London, Friday, July 12, 2019.(AP Photo/Tim Ireland)