Cataphract, Clibanarii, whatever, against Infantry

[Justin of the New Yorkii]

Chaerona Alexanders Cavalry took out solid infantry in a frontal charge and smashed them.

Do we have any other sources other than Diodorus of Sicily that record this? I don't know, it could have happened, but it always sounded fanciful to me.

"Alexander hit the phalanx head-on and crushed it" according to a historian who wrote a few centuries after the fact sounds to me like a "George Washington cut down the cherry tree"-type of story.