The Boston Celtics are using their platform to speak up for Brittney Griner , the WNBA star who has been detained in Russia for more than 100 days. Several Celtics players, who are currently facing the Golden State Warriors in the NBA Finals, showed up to practice on Saturday wearing black T-shirts with the words “We Are BG” written on the front in orange letters. “It’s extremely tough seeing what she’s going through,” Celtics star Jayson Tatum told ESPN . “I know everybody sees and feels that, and obviously we’re all together in support trying to bring her back to her family and things like that. Yeah, wearing those shirts today in support of her.” Tatum connected with Griner when the two basketball stars played as members of Team USA at the Summer Olympics in Tokyo. “Being over there with the Olympics, obviously it was during COVID and so we couldn’t really go out and see other events and things like that,” Tatum told ESPN. “So after the games, after practice, we would be in the...