Defensive tackle Datone Jones signed with the Vikings last week in part because he feels they will give him the best chance to prove himself.
He is by no means the only Vikings defensive tackle in a prove-it year.
With the exception of Pro Bowl nose tackle Linval Joseph, who has two years left on his contract, the rest of the Vikings' key contributors at defensive tackle are in contract years, including Jones, the former Packers first-round pick who signed a one-year deal worth $3.75 million.
Sharrif Floyd is sticking around on his fifth-year option, perhaps because his lingering knee injury gave the Vikings no say in the matter, but he will be a free agent after the season.