SANTA CLARA, Calif. (CBSNewYork) — With the 49ers leading the Rams 21-0 in the fourth quarter, Westwood One’s Kevin Harlan probably never dreamed one of his calls in that game would soon go viral.

And then an attention-seeking “goofball,” as Harlan put it, darted onto the field.

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Harlan called the sequence of events with the excitement and detail of a big play in the clutch moments of a Super Bowl.

“He’s running down the middle by the 50!” Harlan said. “He’s at the 30! He’s bare-chested and banging his chest! Now he runs the opposite way!. He runs at the 50! He runs at the 40! The guy is drunk, but there he goes!”

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The fan, who had a phone number written across his chest, was eventually tackled by authorities.