Hey, it worked for the NFL's Philadelphia Eagles last year.
Portland Timbers defender and Eagles fan Zarek Valentin was sporting a dog mask in the postgame celebrations after his team went into Kansas City and knocked off Sporting KC 3-2 to advance to MLS Cup. It's what Eagles player Lane Johnson did on Philadelphia's road to the Super Bowl earlier this year.
"We're not done yet," Valentin said of the No. 5-seeded Timbers, who move on to face Atlanta United. "We want to go into Atlanta and make it as tough as possible and hopefully get one more win.
"It's going to be tough. They're a very talented team from front to back. They're very good with the ball. The crowd brings it, as well. Again, we're probably going to be underdogs like my Philadelphia Eagles."