Los Angeles Sparks guard Kelsey Plum is joining Amazon Prime Video's WNBA broadcasts as a player contributor, making appearances in studio throughout the season. “Kelsey’s had a standout career in the WNBA and is a dynamic presence in women’s basketball,” said Amina Hussein, head of on-air talent and development for Prime Video Sports. “We’re building something special with WNBA on Prime, and her contributions to our broadcast as a current league veteran will add to our goal of delivering fans an authentic, player-driven experience.” Plum, the No. 1 pick in the 2017 draft, will help highlight key storylines around the league and provide insight. Prime studios are in Los Angeles. “I’m excited to join Prime Video this WNBA season, as the league has never been more valuable in terms of media deals and viewership.…