Malik Tillman believes Rangers have not reached top level yet and expects an improved performance against Celtic.
Michael Beale's men made it four wins on the bounce under the new boss after a 3-0 win over Motherwell at Ibrox. The USA international - on loan from German giants Bayern Munich - was amongst the goals as he netted in front of his family in Govan. Despite the convincing result, the 20-year-old believes there is much more to come from the Light Blues and has called on them to show that in the Old Firm derby.
Ange Postecoglou and his Hoops go into the game nine points clear at the top. Victory would move them 12 points ahead while a win for Beale and Co would reduce the difference to six with plenty of football to be played.