With another Old Firm Derby on the cards, everybody is looking forward to see Diouf and Brown engage in another battle with hopes of it being in footballing terms.
Two weeks ago, both players were involved in a spat after Brown celebrated a goal right in front of Diouf which prompted the referee to book Brown for his actions.
While nobody on Earth was surprised that Diouf had made a new enemy, everybody was puzzled as Diouf showed incredible calmness and composure to ignore and stay away from prompting any further ugly scenes.
But while that incident was a small black spot in the whole game, Diouf irked the Celtic players with some good touches and plays throughout the matches. Diouf even left Brown chasing his shadows some of the times with some good jinks and touches.
El Hadji Diouf vs Scott Brown: What Do The Clubs Say?
Diouf will be a massive target for abuse in Parkhead this Sunday, not only for his duel with Brown. Diouf infamously spat at Celtic supporters while playing for Liverpool in the 2003 UEFA Cup quarter-final.
However, Rangers manager Neil Lennon has no doubts over whether Diouf will be able to brush off any verbal abuse from the Celtic fans
"I don't think it will be a problem for him," said Smith.
"He has shown in the games he has had here already that he has handled himself very well and I don't see any reason why it should be any different this weekend."
Even Rangers teammate Majid Bougherra believes that Diouf will be able to keep calm in the match against Celtic.
"You see him in the last game," said defender Bougherra. "He is very professional and did not react."
"He played in Africa and in Senegal, where the pressure on the team is more than this," said Rangers' Algeria defender.
"Off the pitch, he is a fantastic guy - he is funny, he is cool, he is a very nice guy.
"On the pitch, he is different. He wants to win and likes to battle, but you have to respect that.
"But, at the moment, we are very happy with him and he is very quiet and professional. Every guy in the team likes him."
Celtic manager Neil Lennon feels that battles likes this are the aspects that spices up the Old Firm Derby and its perfectly okay unless things get out of control.
"Both teams have their own personalities and it can get a bit feisty at times, but there's nothing wrong with that, as long as it doesn't develop into something outrageous," he said.
"Basically you want to keep 11 players on the pitch."
Rangers Vs Celtic: How Do The Managers Feel Ahead Of The Clash
Celtic manager Neil Lennon believes that this particular fixture always throws up surprises and it would be the same this time around too.
"I think it's too tough to call. The form we have shown has been pretty consistent but you can't call an Old Firm game and this one is no different.
"In the first game (Celtic's 3-1 defeat to Rangers in October) the players didn't do themselves justice, it probably took a bit to familiarize themselves with the fixture and occasion.
"But certainly in the last two games they have shown a lot of character and bravery."
Meanwhile Rangers manager Walter Smith states that his team will go for the win like they have always done in previous Old Firm Derbies.
"Naismith is fit enough to start the game. The problem he has had is a tightness in his hamstring that keeps recurring.
"He felt it there and we thought it better to leave him out for a couple of matches and would have done so regardless of who we were playing at the weekend.
"I think sometimes, the way teams play, it is slightly easier to sit back and break away.
"Certainly, we found that in the first game at Celtic Park. The same thing happened here - Celtic defended very well here and broke away, albeit we would consider it to be an error from ourselves that contributed to the first goal.
"You obviously go into the game not wanting to lose and to try to win - as we did earlier in the season.
"I don't think there has been a great deal between the teams overall. The two Old Firm games that are left will be important factors in the title race."
Rangers Vs Celtic: How Will The Team Shape Up
Thomas Rogne and James Forrest have both recovered from their respective injuries and will be in the team for the clash at Parkhead. However, Shaun Maloney, Andreas Hinkel and Cha Du Ri remain on the sidelines and will miss this game..jpg)
Celtic's Predicted Team: Forster, Wilson, Majstorovic, Mulgrew, Izaguirre, Brown, Ledley, Kayal, Samaras, Ki, Commons, Zaluska, Hooper, Stokes, McCourt, Forrest, Rogne, Ljungberg.
Meanwhile, Rangers will welcome back Gary Naismith into the starting line up after he was rested for the midweek's game against Sporting. Nikika Jelavic also returns after being cup-tied for the Europa League game. However, Jamie Ness is doubtful after getting injured during warm-up before the game against Sporting and Kirk Broadfoot remains a long term absentee.
Rangers' Predicted Team: McGregor, Whittaker, Papac, Weir, Bougherra, Bartley, Edu, Davis, Weiss, Naismith, Fleck, Jelavic, Diouf, Healy, Lafferty, Wylde, Foster, Alexander.
Rangers Vs Celtic: Conclusion
As always, the pre-match build up to all the Old Firm Derbies will always be towards controversial issues but lets not forget that a football feast can be expected from the clash at Parkhead this Sunday.
With the likes of Diouf and Brown set to play pivotal parts for both teams, a beautiful spectacle of football can always be expected and goals and galore will be guaranteed.
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