Grujic shone in the Bundesliga last season and returned to Hertha this campaign, where he has continued to impress under the stewardship of Jurgen Klinsmann.
But the Serbia international still has a long-term ambition of starring for Liverpool.
“I still hope for that, of course," Grujic told Goal. “You can't just give up on your goals.
“In fact, I'm probably working harder now than I've ever done before in my life."
Grujic sees no reason why he cannot compete for a first-team spot.
“I know it's going to be tough," he says. “I'm not stupid. I know that Liverpool right now are an unbelievable team, the best team in the world. So, I know that I have to be at a very high level if I want to have a chance.
“That's why I watch as many of their games as I can, to learn and to see the level. I know improvement is the only thing that can help me.
“And it's why I could accept that I needed to go somewhere to play regularly this season. I needed minutes, I needed to learn the game, when to defend, when to attack, where to be on the pitch. I want to improve every part of my game."