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The veteran quarterback overcame serious injuries which sidelined him in 1963 and 1964. John has a fine and extremely accurate throwing arm. Multi-talented, John is also an excellent punter.
John joined the Broncos in 1963. Given a chance to play, he defeated Boston 14-10. The following week he led Denver to a 50-34 romp over San Diego. Well on his way, he injured his knee and was lost for the remainder of the season. John possesses a fine arm and is anxious to display it this year. John is also an excellent punter.
He's a monument to the power of persistence. Singleton was cut by three teams and played in Canada, but never gave up on his NFL dreams. And today he's one of the league's premier tacklers. Denver's standout linebacker finished 2023 with 153 combined tackles, good for third in the league.
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Gallery Redux!
Back to the Front! Broncos card back du jour...
Karl Mecklenburg
Card Sets
Here is a selection of card sets featuring players from this team. The number of players included from the team is also shown.
Broncos Total Card Count
1,941
You can browse all the available Broncos cards in the Broncos Team Gallery