Does anyone know what the black patch on the lower front right jersey represents?
This patch can be seen when the jersey is untucked.

I have looked everywhere I can think of to try and find the answer, but I have had no luck.

I have noticed that both the Home White & Road Blue jersey have this patch on the front right hip.
Not sure if the Black Alternate jersey has it also. I could not find any good pictures.

Here are a couple of decent photos that show what I am talking about.

Henry Coleman in Home White:

Mark Williams in Home White: