The midfield dynamo could be found punching the air in delight in the tunnel after Teddy Sheringham's late penalty won maximum points against Southampton on Saturday.
Gus, on his way back from minor knee surgery, said: "That was unbelievable. It was funny because I didn't see the penalty at first, not until I saw the replays.
"When Steffen chipped the ball over the keeper I thought it was in and I was off celebrating but they all said 'no, no, it's not a goal, it's a penalty'.
"It was a very important penalty and Teddy stayed calm, clever, hit it magnificently.
"I thought we started well, started quickly and it's difficult to maintain that pace for 90 minutes.
"You have to have a lull in the game but I thought for a minute that our second wind wasn't coming. I have to tell you, as a supporter, I loved it. It was like winning a trophy out there because that penalty was so important."
Gus also reported that his rehabilitation is going well after going under the knife last month.
There were no surprises when he explained: "I'm doing what the doctor is saying and he's telling me to stay a little calm because sometimes you want to come back early and that isn't good for the knee.
"Hopefully I might try running on Wednesday, we'll see how it goes. I don't want to put any date on coming back though."
He might be sidelined at the moment, but Gus Poyet was still kicking every ball as his team-mates hit the top of the Premiership.