Joao Felix says he enjoyed his time with former Chelsea striker Diego Costa at Atletico Madrid.
Felix is now on-loan at Chelsea from Atletico, while Costa is with Wolves.
His first season at Atletico in 2019/20 often found him sharing striking duties with Costa, who had returned for a second spell in Madrid after winning two Premier League titles with Chelsea, and the former Blue certainly seemed to make an impression on his Portuguese team-mate, as well as his family.
"He taught me a lot of things," Felix told chelseafc.com.
"He's a good guy, an amazing guy, a funny guy, I loved being there with him. Unfortunately I only had one year there with him, but I had lovely moments with him. He's still my friend. My family love him too, he loves my dad. He's a really nice guy."