All eight players were under team control for 2017, but the amount they'll be paid wasn't settled until Friday.
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The Mariners didn't disclose contract terms on any of the one-year deals, but MLB Network insider Jon Heyman reported Segura signed for $6.2 million, Valencia $5.5 million and Martin $4.85 million. Additionally, according to sources, Smyly agreed to $6.85 million, Dyson $2.8 million, Paxton $2.35 million, Vincent $1.325 million and Scribner $907,500.
Valencia and Dyson are in their third and final years of arbitration eligibility. Segura, Martin, Smyly and Scribner are second-year arb-eligible, meaning they'll remain under team control for one more season in 2018 before becoming free agents in '19.
Vincent and Paxton are first-year arbitration-eligible, with Paxton being a Super Two qualifier.
Players become eligible for arbitration after they've acquired at least three years and fewer than six years of Major League service time. The exception to that is the Super Two qualifiers, like Paxton, who become eligible a year earlier because they're in the top 22 percent in terms of players with at least two and fewer than three years of service time.
Catcher Jesus Sucre also fell into the Super Two category this year, but the Mariners have already reached a contract settlement with him for $630,000.
Greg Johns has covered the Mariners since 1997, and for MLB.com since 2011. Follow him on Twitter @GregJohnsMLB and listen to his podcast. This story was not subject to the approval of Major League Baseball or its clubs.