Former Roma centre-back Leandro Castan has revealed Radja Nainggolan used to leave the club dressing room to smoke with the assistant manager.

Nainggolan, now with Serie A side Cagliari on loan from Inter, played alongside Castan at Roma from 2013 to 2016 before the Brazilian went on a series of loans and ultimately signed permanently with Vasco da Gama in 2018. 

While immediately impressed by what Nainggolan could do on the pitch, Castan revealed the Belgium star would do what he wanted off it, regardless of what other people thought. 

"He arrived from Cagliari and I knew little about him at the time. But, right on his first match, he would tackle an opponent with class before kick starting an attacking move, then I knew what calibre of player he was," Castan told Goal.

"He's a fine player, but unfortunately he'd get into a lot of controversy. When he was at Roma, he'd leave the dressing room to have a smoke with the assistant manager, he did what he pleased and wouldn't care what people would think of it.