Peyton Manning is one of the greatest quarterbacks to ever grace a football field.
He holds the NFL record for career touchdown passes and was a five-time NFL MVP.
But after being drafted first overall in 1998 by the Indianapolis Colts, he had a rookie season that was less than stellar.
He threw for 3,739 yards, but completed only 56.7 percent of his passes (he never completed less than 62.1 percent in any season thereafter).
He also threw a whopping 28 interceptions as the Colts limped to a 3-13 record that season.
Manning's future looked murky, but he quickly learned from his mistakes, cutting his interceptions to 15 the next season and making the Pro Bowl.
While Manning did go on to have one of the greatest careers in football history, he also had some early struggles in the playoffs.
The Colts lost in their first three playoff appearances under Manning's guidance, as "The Sheriff" completed just 47.6% of his passes and tossed one touchdown in those games combined.
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