This should definitely be a fun game of polo to watch!
Next month, England's most famous brothers Prince William and Prince Harry will face off against each other as they compete for the Sentebale Polo Cup on June 12.
There is more than just royal rivalry on the line too!
Harry is playing for a team representing his charity Sentebale, which aids young people in the southern African kingdom, while William is playing for Tusk Trust, which protects Africa's endangered wildlife.
Have fun, boys! We can't wait to see who wins.
[Image via WENN.]