On-loan with Hertha Berlin, Grujic is set to start against Union Berlin.
He said, "It's great for the fans and the city. Of course I hope that Hertha's fans can enjoy two wins more against a big rival this season. And I hope that in the end on the table we will be better than Union.
"We have more quality in the team, have invested more in new players, played longer in the Bundesliga and have more experience. Everything speaks for us. It's up to us. If we can not do that, that's our mistake. Then we are not good enough!"