Kate Martin's girlfriend Claire Gransee poses in all-black outfit for glamorous mirror selfie 

Golden State Valkyries guard Kate Martin's girlfriend, Claire Gransee, showcased her keen sense of style, donning an all-black outfit for a mirror selfie.

Gransee, who made her relationship with the WNBA star public in June, shared the photo as she prepared for a work-related activity.

"Work christmas!!" she captioned her Instagram story.

Check out her post below:

All glammed up for work

As per her LinkedIn profile, Gransee works for Boston-based recruitment agency Beacon Hill Technologies. She graduated with a degree in Communications Studies from the University of Iowa, where she met Kate Martin, who starred for the Hawkeyes.

Gransee has been a constant supporter of Martin's career, which is now taking another path with the Valkyries after she was selected in the expansion draft.

Kate Martin played 34 games in her rookie season with the Aces last campaign, averaging 2.6 points and 1.6 rebounds in 11.5 minutes per game. While she saw limited minutes, she was a fan favorite in Las Vegas, with her No. 20 jersey among the best-selling.

She was tipped to become part of the long-term plans of the team until she was made available for the expansion draft and nabbed by Golden State.

Claire Gransee supports girlfriend Kate Martin in move to Golden State

Claire Gransee was with Kate Martin when she was selected by the Valkyries from the expansion draft.

Gransee shared a video of Martin being interviewed by ESPN following her selection. She was also with the WNBA star when she packed up her apartment.

Kate Martin was among the 11 players selected by the Valkyries ahead of their inaugural season in the WNBA. She was joined by Iliana Rupert (Atlanta), Maris Conde (Chicago), Veronica Burton (Connecticut), Carla Leite (Dallas), Temi Fagbenle (Indiana), Stephanie Talbot (LA) Cecilia Zandalasini (Minnesota), Kayla Thornton (New York), Monique Billings (Phoenix) and Julie Vanloo (Washington).

Martin spent her rookie season with the Aces, where she played limited minutes but was a steady fixture in the team's rotation and the community.

But before she plunges into action in Golden State, Martin will play first in the newly formed Unrivaled Basketball League, which will tip off in Miami, Florida, in January.

She will play for Laces Basketball Club in the 3-on-3 league, alongside fellow WNBA players Kayla McBride (Minnesota Lynx), Alyssa Thomas (Connecticut Sun), Courtney Williams (Lynx) and Stefanie Dolson (Washington Wizards). Martin's former Aces teammate Kelsey Plum was also initially part of the team but she withdrew to give more time for herself in the WNBA offseason.

The Unrivaled Basketball League was founded by Breanna Stewart (New York) and Napheesa Collier (Minnesota) to give professional women's players a viable alternative to showcase their talents while earning good money.