Dwayne Johnson returned to the WWE on Monday night, making a surprise appearance at RAW -- and it's safe to say following an electric few minutes on the mic and in the ring ... the crowd definitely smelled what he was cooking.
The 51-year-old -- who hasn't been seen in the WWE since September -- shocked fans at Pechanga Arena in San Diego when he interrupted Jinder Mahal's anti-American rant to open up a can of whoop ass.
The Rock slowly made his way to the ring after Mahal had bashed the U.