Barcelona fullback Alves: We must stop PSG's Ibrahimovic
Ibra had one ill-fated season at Barca and Alves knows the Swede will be out for revenge.
"Ibrahimovic is a big concern, he is a great player," said Alves.
"We must work hard to prevent him from scoring. He's an important player and can score at any time, but we also must take into account the other players of PSG."