4) Stan Kroenke – Arsenal (£12bn)
Kroenke moved into sport ownership when he purchased NBA basketball team Denver Nuggets. He then bought Hockey (Colorado Avalanche), MLS (Colorado Rapids) and NFL (LA Rams) franchises.
The American billionaire took full control of Arsenal in 2011, before making it a private company in 2018.
The Kroenke’s running of the club has led to protests from supporters in the past but recent success has begun to improve their reputation.