NFL keeps losing refs as Gene Steratore becomes fourth official to retire in 2018
49ers-Seahawks referees: Gene Steratore to be lead official - Niners Nation
Western Pennsylvania native Gene Steratore retiring as NFL referee
Super Bowl LII: Gene Steratore assigned as referee for Patriots vs Eagles - Pats Pulpit
Gene Steratore Named Head Referee of Super Bowl LII at US Bank Stadium, News, Scores, Highlights, Stats, and Rumors
Gene Steratore to retire after 15 seasons, joining CBS – Football Zebras
Official Gene Steratore who notoriously used index card to measure Cowboys first down vs Raiders retires from NFL - Silver And Black Pride
NFL Week 2: Steelers-Raiders chat transcript
'Index card' NFL referee Gene Steratore retires
Are referees affected when they are called names during games? - Quora