Thomas was designated as the team’s franchise player earlier this month, meaning the only way she could sign with another team was via trade. The move can't become official until Feb. 1.

I hope you’re sitting because the massive free agency deals aren’t slowing down. First, Kelsey Plum and Jewell Loyd were traded, and now five-time WNBA All-Star Alyss Thomas is on the move. Thomas is reportedly joining the Phoenix Mercury via trade, the second landscape-shifting move in less than a week.

The Mercury are finalizing a trade to acquire five-time All-Star Alyssa Thomas from the Sun, sources told ESPN.