Rabid Knights fan Harper asks Nats to 'rock the red' for Capitals' Cup win

Bryce Harper may be the Vegas Golden Knights' biggest celebrity fan, but he's employed in Washington, D.C. So this Stanley Cup Final was a win-win for him.

On Thursday, the Capitals brought the Cup to the District of Columbia for the first time with a 4-3 win in Las Vegas. Harper, a Vegas native who's gone on to stardom with the Nationals, attended Games 3 and 4 of the series in Washington clad in Golden Knights gear but left Capital One Arena disappointed after the home team won.

Related: Nats' Harper wants future child to play hockey because of Golden Knights

When the clock ran out on Vegas and the Capitals lifted the Stanley Cup, a defeated Harper took it all in stride and congratulated his adopted hometown on its first major professional sports title in 26 years.

The 25-year-old did make sure to mention his Golden Knights too, who stunned the sports world by finishing three wins short of a championship in their inaugural season.

With the Nationals playing at home this weekend, Harper is now ready to honor Washington's new champions when they face off against the Giants. He's already imploring his baseball team to don some Capital red in celebration.

Harper wasn't the only member of the Nationals celebrating the win on Thursday, as some of his teammates took to Twitter as well.

Perhaps the Nationals will all rock the red while Lord Stanley himself pays a visit to Nationals Park in the near future.