Under GM Rick Spielman, The Minnesota Vikings have a pretty good history of identifying young talent and signing them to a contract extension before they hit the open market. Danielle Hunter and Everson Griffen are two players that come to mind, and both guys signed big extensions before they became first rate stars in the NFL.
Adam Thielen’s story is a bit different (and no, I’m not going to mention he went undrafted and is from Minne—SON OF A).
He signed a three year contract extension in 2017, with only $11 million in guaranteed money.