The Las Vegas Raiders are really poking the bear at training camp ... electing to take a playful shot at their division rival's best player, Patrick Mahomes ... by dressing up a Kermit The Frog puppet to look like the Kansas City Chiefs superstar!!
The Raiders brought the troll job out on Thursday ... showing the puppet rockin' Mahomes' No. 15 jersey and a wig that's similar to his signature hair.
Raiders rookie safety Trey Taylor even started imitating the "Sesame Street" character's voice (which Pat's famously resembles) .