The camel is by the mountain

Hi

There is a saying in my language whose literal translation in English would be this:

Now the camel is by the mountain...

This saying/proverb is used sarcastically. It is directed at arrogant people/behavior. For example, a good chess player is winning all the games of chess in and teasing his friends about their weak play. A grand master happens to be there -- and now the cocky player sits across from him to play. His friends may say "Now the camel is by the mountain."

The proverb comes from a fable in which a camel took great pride in his height and taunted other animals about their size/height. Once the camel walked past the mountain and the mountain laughed at his short height.

Do we have an English equivalent for this kind of saying? Something like: when one meets one's match (and is told by others that one is meeting one's match.)

Thanks,

Tom