The longtime Phoenix Mercury star is joining the Atlanta Dream, and discussed her decision in an Unrivaled social media clip.

After 11 seasons in Phoenix, 10-time WNBA All-Star Brittney Griner has agreed to a deal with the Atlanta Dream, sources tell me and @alexaphilippou. Griner spent her entire career with Mercury and now heads to Atlanta in one of most stunning free agency moves in league history. pic.twitter.com/NfdAuYOAVs

Dream star Allisha Gray couldn't contain her excitement after hearing of Brittney Griner signing with Atlanta after spending her entire career with the Phoenix Mercury

Amid a flurry of trades across the WNBA, the Indiana Fever re-signed All-Star guard Kelsey Mitchell to a one-year supermax contract worth around $249,000. Sometimes an evaluation doesn’t need to be overcomplicated. Fever executives entered this offseason with the top priority of re-signing two-time All-Star Kelsey Mitchell. Mission accomplished.

WNBA star Brittney Griner confirmed reports that she will sign with the Atlanta Dream as a free agent. Griner posted a video on her social media accounts with Dream players Allisha Gray, Rhyne Howard and Jordin Canada. “I need to introduce my new teammates because I will be joining the Atlanta Dream,” Griner said.

Griner entered the offseason as the second-longest tenured WNBA player with one team, having spent her entire career in Phoenix.

In a move that shakes up the WNBA, Brittney Griner is joining the Atlanta Dream in free agency after a decorated 11-season stint with the Phoenix Mercury.

WNBA All-Star free agent center Brittney Griner announced she's signing with the Atlanta Dream after spending her entire 11-year career with the Phoenix Mercury in a video shared on her Instagram account Tuesday (January 28).

In Phoenix, the center lived up to her draft potential, won a title and was a fan favorite. What lies ahead in Atlanta?