UFC on FOX 17 isn’t happening until December 19, but already co-main eventer Junior dos Santos is throwing hard jabs at opponent Alistair Overeem.

As per his Instagram account:

Note the line, “USADA Let’s work.” That right there pretty much hits the nail on the head when it comes to Overeem, because, you know, he’s jammed-packed full of SuperSoldier Serum.

Here’s hoping Overeem can keep his synthetic testosterone treatments in check this time!