ball

Malaysia v Vietnam - Men's Singles - Vietnam's Tran Tuan Quynh in action

Singapore SEA Games Organising Committee/Action Images/Reuters

Vietnam’s Tran Tuan Quynh in action during the Malaysia v Vietnam Men’s Singles match in Singapore

Maria Sharapova from Russia returns the ball during her Madrid Open tennis tournament match against Caroline Garcia from France in Madrid, Spainon Wednesday

Andres Kudacki/AP

Maria Sharapova from Russia returns the ball during her Madrid Open tennis tournament match against Caroline Garcia from France in Madrid, Spain, on Wednesday

Young Yemenis play football on a street in Sanaa, Yemen on Thursday. Schools and universities have remained closed in Sanaa and several Yemeni cities since the Saudi-led coalition began its military operations on positions held by the Houthis and their allies across the country

Yahya Arhab/EPA

Young Yemenis play football on a street in Sanaa, Yemen on Thursday. Schools and universities have remained closed in Sanaa and several Yemeni cities since the Saudi-led coalition began its military operations on positions held by the Houthis and their allies across the country

Bangladesh's Nasir Hossain drops a catch from New Zealand's Cory Anderson during their Cricket World Cup match in Hamilton, Friday

Nigel Marple/Reuters

Bangladesh’s Nasir Hossain drops a catch from New Zealand’s Cory Anderson during their Cricket World Cup match in Hamilton, Friday

Serena Williams of the U.S. serves during her women's singles match against Silvia Soler-Espinosa of Spain at the China Open tennis tournament in Beijing...Serena Williams of the U.S. serves during her women's singles match against Silvia Soler-Espinosa of Spain at the China Open tennis tournament in Beijing September 29, 2014.

Petar Kujundzic/Reuters

Serena Williams of the US serves during her singles match against Spain’s Silvia Soler-Espinosa at the China Open tennis tournament in Beijing on Monday.

A boy plays with a ball at a temporary tent camp set up for Ukrainian refugees in the town of Novoshakhtinsk in Rostov region near the Russian-Ukrainian border, southern Russia, July 9, 2014.

Sergei Karpukhin/Reuters

A boy plays with a ball at a temporary tent camp set up for Ukrainian refugees in the town of Novoshakhtinsk in Rostov near the Russian-Ukrainian border, southern Russia

A man plays with a ball at sunset on June 10, 2014 in Berlin.

Inga Kjer/AFP

A man plays with a ball at sunset on Wednesday in Berlin

Dancers of the state opera ballet perform at the Opera Ball in Vienna

Leonhard Foeger/Reuters

Dancers of the State Opera Ballet perform at the Opera Ball in Vienna on Thursday

Gorillas with rugby balls

Ben Birchall/PA Wire

Komale, a Western Lowland Gorilla, inspects a rugby ball that has been placed into the enclosure at Bristol Zoo as part of its enrichment programme.