The Washington Nationals won their first World Series championship back in 2019, but since then the team has, more or less, been in rebuild mode. But even as general manager Frank Rizzo overhauls the roster, it’s abundantly clear that the team would like to keep its best player, 23-year-old Juan Soto, in D.C. for a long time. Recent reports have the Nats offering Soto a 13-year, $425 million contract extension, and while he is yet…