John Hadl played 16 seasons and had career totals of 2363 completions in 4687 attempts for 33,503 yards, 244 TDs, and 268 INTs. Click on the 'John Hadl Stats' link below to see his stats broken down season by season.
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The highest number a quarterback can wear in the NFL is 19, which was worn by Johnny Unitas, who played for the Baltimore Colts.-----The highest jersey number that I can remember was #60 worn by Otto Graham of the Cleveland Browns of the All-American Football Conference. John Hadl of the Chargers and Rams wore #21 during his career in the 60s and 70s. But since the merger in 1970, the highest number a quarterback on the roster can wear is 19.
Sean Taylor was a famous NFL player who wore Number 21 for the Washington Redskins. He was murdered when he was shot during a botched robbery/home invasion.
John Elway
John Reaves.
John Elway