Article continues below advertisementCharlie Sheen is opening up about Matthew Perry and the struggles he believes the late actor was still facing before his untimely death.During an appearance on Piers Morgan Uncensored on Tuesday, September 16, the Platoon star shared that he "could tell" that Perry "wasn't sober" while promoting his 2022 memoir about addiction and recovery.Article continues below advertisement"I felt really bad, I felt bad for him," Sheen admitted.