Tragic news from Lewis Hamilton -- his beloved dog, Roscoe, has passed away at 12 years old.
The F1 superstar shared the devastating update on the English bulldog's health battle on Monday ... revealing to his fans he "lost my best friend last night."
The Ferrari driver -- who adopted Roscoe back in 2013 -- thanked his followers for the support and love they've shown his four-legged friend over the years.
Heartbreakingly, he added Roscoe is now with Coco, his bulldog who passed away in June 2020.