My all-time favorite player is Walter Payton. When he retired, Payton lead the NFL in all-time rushing yards as well as all time rushing touchdowns. His touchdown celebration usually involved spiking the ball or throwing it into the crowd. He was the best and he didn't showboat. He acted like he had been there before and like he expected to be there again.
I would love to add to Costas' commentary but he said it better than I could have said it.