After missing the playoffs for the first time in four years, the Washington Mystics are in talks to upgrade their roster significantly by acquiring Elena Delle Donne, the 2015 WNBA MVP, according to multiple people familiar with the negotiations. Published reports indicated the Mystics have offered their first-round pick this year, No. 2 overall, and All-Star center Stefanie Dolson to the Chicago Sky in exchange for Delle Donne. Those familiar with the situation, who requested anonymity because the negotiations are continuing, would not confirm the specific terms being discussed. Mystics coach and general manager Mike Thibault also declined to comment. Delle Donne, a 2016 Olympian regarded as one of the best players in the world, is a restricted free agent, allowing the Sky to match any offer. The 6-foot-5 guard-forward, however, has expressed a strong desire to play closer to her home in Delaware, even saying she would be willing to sit out part of the 2017 season to facilitate a trade. WNBA free agency began Jan. 15, but deals do not become official until Feb. 1, the first day players are permitted to sign. This past season, Delle Donne averaged 21.5 points, the second-most in the league, prior to injuring her right thumb in a 118-81 loss to the Mystics on Sept. 7, 2016. Shortly thereafter she had season-ending surgery, forcing her to miss the final 10 games.