Celtic midfielder Kris Commons wants Neil Lennon's side to be perfect between now and the end of the season to claim the SPL title.
Although the Bhoys are currently a point behind arch-rivals Rangers in the title race, they do crucially have a game in hand over the Light Blues.
If Celtic win all five of their remaining SPL fixtures then they would end Gers' two-year reign at the top of Scotland's top flight.
Celtic's fate is firmly in their own hands and Commons is keen for the club to win all their remaining matches and not rely on someone else taking points from the Ibrox outfit.
"Every game is must win. That's the nature of the business in Scotland," said Commons.
"We're expected to win every game and if we do we'll be champions.
"Fifteen points is definitely possible. It's something I'm looking forward to doing. We kept a clean sheet at Ibrox in our last game and that's fantastic.
"It has given us something to build on and stood us in good stead for Dundee United. We just need to focus on our jobs and not rely on other people. It's in our hands now - it's ours to lose or win."