The Seattle Storm have designated Gabby Williams as their core player, meaning she will not become an unrestricted free agent, sources told ESPN on Tuesday. Teams have until Jan. 20 -- the day before players and teams can begin negotiating -- to extend core designations to eligible players.

Gabby Williams will reportedly not become an unrestricted free agent, and the Storm will use their core designation on the sixth-year forward.

New York's Breanna Stewart was one of a handful of players given the franchise tag by their WNBA teams, meaning they can't sign a contract directly with anyone else. Other players receiving the franchise player designation include Kelsey Plum (Las Vegas),

The Storm's decision to core Gabby Williams came as a surprise to many Tuesday. Williams can now sign a one-year contract at the league maximum of $294,244 but is not able to sign with another team as a free agent.

Likely dictated by the decisions of Nneka Ogwumike and Gabby Williams, the Storm's free-agency moves will likely have a long-term impact on the franchise.