Real Betis defender Marc Bartra insists Ousmane Dembele will be a success with Barcelona.

The pair played together at Borussia Dortmund.

Former Barca defender Bartra said: "I think he will be a success. He's a player with a lot of potential and a huge amount of talent. He"s still young, though. I know him and you can tell that he's still very young.

"So imagine when he starts to get some stability, to understand [Barça's] play a little more.... That will make him a great player.

"When I knew that he was coming, the first thing I thought is that he will have to have a lot of patience. He's a great player, with a lot of talent, but he has to have patience because it's not easy to adapt to Barça."