Philbin was in his usual spot in the Lambeau Field press box as the Packers took on the New York Giants, returning to the squad for the first time since his 21-year-old son, Michael Philibin, was found dead in a Wisconsin river Monday.
A preliminary autopsy indicated the younger Philbin died from drowning.
Oshkosh, Wis., police said no evidence of foul play was discovered during the autopsy.
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