U.S. President Joe Biden tweeted a message of support Tuesday for Japanese soccer player Kumi Yokoyama, who recently came out as transgender, and Las Vegas Raiders defensive end Carl Nassib, who this week became the NFL's first openly gay active player.In a tweet from the official presidential Twitter account, which features a rainbow banner with the message "Happy Pride Month," Biden praised Yokoyama and Nassib for helping children facing issues related to their sexuality or gender identity."To Carl Nassib and Kumi Yokoyama -- two prominent, inspiring athletes who came out this week: I'm s…READ FULL ARTICLE