Thompson memorialized his time spent with Rocco over their 13 years together and wished him well in the afterlife.

The Golden State Warriors and Dallas Mavericks families are mourning the loss of a legend. Rocco Thompson, the beloved bulldog of Klay Thompson recently passed away at age 13. Fans poured onto social media to pay tribute to Thompson's pet, Rocco.

Rocco, the beloved English bulldog that belonged to former Golden State Warriors star Klay Thompson, has died, according to Mychal Thompson, the now-Mavericks guard's father. He was 13. The elder Thompson revealed the devastating news on the Wednesday edition of ESPN LA sports radio show “ Mason & Ireland .”