They hit their heads together when heading the ball.

争顶头球时，二人的头撞在了一起。

youdao

Gerrit Blank, 14, was on his way to school when he saw "ball of light" heading straight towards him from the sky.

14岁的Gerrit Blank在上学的路上，突然发现天上有一个“光球”直直冲自己脑袋飞过来。

youdao

All I know is he was heading the ball and an Arsenal player tried to protect his goal and accidentally kicked JT in the head.

我所知道的就是他在头球攻门的时候被解围的阿森纳球员一脚踢中面部。

youdao

In the ninth inning, Tampa Bay batter Gabe Kapler sent a ball heading for the stands in left-centerfield, threatening a home run and spoiling Buerhle's perfect game.

VOA: standard.2009.07.24

The ball was heading wide but, unfortunately for the visitors, it struck Knight's leg and trickled into Jussi Jaaskelainen's net.

BBC: Manchester United celebrate their opening goal

Four minutes into stoppage time, Harris netted his second goal when heading the ball home following a cross from veteran fellow frontman Steve Claridge.

BBC: Millwall 3-0 Derby

That initial spurt of pressure saw Liverpool win a corner with Maxi Rodriguez heading the ball to Torres, but the Spanish striker's volley struck the post.

BBC: Wigan 1-0 Liverpool