Watch now: Stefon Diggs gives out signed footballs at the end of Bills practice
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The Bills wide receiver is part of Snickers' "Rookie Mistake of the Year" campaign, where fans admit and submit some of their more egregious errors. Then, NFL players get to read them and give their analysis.
The extension would place Diggs in the top five for both highest paid wide receivers in the NFL and highest total guarantees among wide receivers, according to contracts website Spotrac.com.
