You need good hand-eye coordination to play ball games.

玩球类游戏，手和眼的动作要协调好。

《牛津词典》

She just managed to keep the ball in play.

她把球勉强保持在界内。

《牛津词典》

Don't play ball games.

不要玩球类游戏。

youdao

Perhaps they did this after expressing hope that they could play ball with each other,meaning that they could learn to cooperate.

VOA: special.2010.08.22

I just want to exercise or something I'll go and play soccer, basketball, dodge ball, things like that.

我想锻炼的时候我就去踢足球、打篮球、打躲避球，这一类的。

我喜欢运动 - SpeakingMax英语口语达人

Too wet to go out and too cold to play ball.

VOA: special.2010.05.02

"If we're all gonna play ball, let's all play ball, " Jackson said.

CNN: 'Tropic Thunder' pushes envelope and then some

"We couldn't put the ball in play and we couldn't hit a fly ball, " Braves manager Fredi Gonzalez said.

NPR: Braves Can't Capitalize On Strasburg's Early Exit

"I was just shanking a lot and not able to keep the ball in play, " he said.

BBC: SPORT | Tennis | Seeded trio falter in Monte Carlo