Charted: The rapid rise of Major League Soccer
Major League Soccer is poised to have 30 teams in less than three decades, faster than any other major sports league in North America.
Driving the news: The MLS awarded San Diego an expansion franchise that's set to begin play in 2025.
Zoom in: The newer leagues tend to reach 30 teams faster. The second youngest of the bunch, the NBA, took 58 years to reach 30 teams, twice as long as MLS.
- The MLB — with a long history dating back to the 19th century — took 122 years to reach the 30 mark.