Neil Lennon is an experienced man when it comes to derby games.
He knows trouble can break out on the park at any given moment and he reckons his inspirational leader Scott Brown was targeted last time around.
The Celtic boss believes his captain was given extra treatement and was on the receiving end of blows from Alfredo Morelos and Ryan Kent.
He said: "It's not my problem that they have a huge disciplinary problem and if it manifests itself again on Sunday then we will try to take advantage.
"Yes, they did (target Brown) and they did after the game as well.
"Scott Brown's a veteran of these games, he has been here 12 years he has played over 500 games. I don't need to tell Scott Brown how to manage himself through a game of football, he does it very well and the bigger the game the more he enjoys it.
"Scott Brown is always important. It is a big game and he is a big game player. It is very easy to say Scott Brown will be playing on Sunday.
Neil Lennon accuses Rangers of having a 'huge disciplinary problem'
The Celtic boss was also on hand to discuss Kieran Tierney and his injury problems.
The left back has been struggling with a double hernia problem but could still play in Sunday's game against Rangers.
Lennon added: "It might be a big ask for him to play all three remaining games. Last week he was probably at 70 per cent, but a 70 per cent KT is better than most at 100 per cent."
