To be precise, there were 5 Poles in the semi-finals - Zieliński, Zalewski, Kiwior, Lewandowski, Szczęsny
My bad, I didnt watch the entire match to know Zieliński came off the bench. And I dont really follow Inter milan to be privy of their squad players. The fact of the matter is Barca has two polish starters, both of whom, established stars in the polish context. While everyone was sceptical about the referees pre-match I honestly thought it cant be that bad given the polish loyalty I got to see here.