Miami Dolphins owner Stephen Ross made a number of upgrades to Hard Rock Stadium during the last few years, and it appears those are paying off.

Wednesday, the Dolphins were listed as one of the top 25 most valuable sports franchises in the world by Forbes, who listed the top 50.

Forbes says the Dolphins are worth $2.38 billion, which is up 28 percent from last year when the team was said to be worth $1.85 billion.

Miami is ahead of five other NFL teams (Green Bay Packers at $2.35 billion, Baltimore Ravens at $2.3 billion, Pittsburgh Steelers at $2.25 billion, Seattle Seahawks at $2.25 billion and the Minnesota Vikings at $2.2 billion).

Once again, the Dallas Cowboys ($4.2 billion) were named the most valuable sports franchise in the world for the second consecutive year. In total, there were 29 NFL teams that made the Forbes top-50 list. Only the Cincinnati Bengals, Detroit Lions and the Buffalo Bills did not make the final cut.

In 2008, Ross purchased 50 percent of the Dolphins from then-owner Wayne Huizenga for $550 million. In January 2009, Ross took over full control of the Dolphins.

In recent years, Ross has put in nearly $500 million of his own money into Hard Rock Stadium renovations in efforts to get the Super Bowl to return to Miami. He was successful, and Hard Rock Stadium will host Super Bowl LIV on February 2, 2020.