Golden State Valkyries wins first WNBA championship, beating Atlanta Dream in Game 7

SAN FRANCISCO — Just two years after being born into existence, the Golden State Valkyries became the fastest expansion team in WNBA history to win a championship. They did it through their typical grit and determination — and even some sensational shooting from Gabby Williams — to hold off the Atlanta Dream for a 68-63 victory. Both teams were in…