A young tennis fan was left devastated after some dude yanked Polish tennis player Kamil Majchrzak's hat from his reach ... but thanks to the internet, this story has a happy ending!!
It all went down as Majchrzak was signing autographs after his second-round win against Karen Khachanov at the US Open on Thursday. As he went to hand his cap to a kid in the front row, an older man took it instead ... and you can see the sadness take over his face.
The kid tried to get his attention, but to no avail.