Galatasaray boss Roberto Mancini has kick-started the war of words ahead of his side's Champions League showdown against Chelsea - by claiming that Jose Mourinho has no friends in football.
The two managers have a chequered history having clashed when Mourinho took over at Inter Milan from Mancini in 2008.
The pair went head-to-head last month in the first leg of their last 16 tie in Turkey, and are set to resume their battle tomorrow.
Before the first game Mancini aimed a dig at the Chelsea boss, claiming that the 'Special One' won the Champions League in 2010 with 'his team'.
Now he's back for more, insisting ahead of tomorrow's game at Stamford Bridge that Mourinho is something of a loner in the world of football.
The Italian said: “I said some perfectly normal things [before the first game] but someone stirred it up into controversy and he got offended.
“In Istanbul we saw each other and said only ‘hello’. We certainly aren’t friends. I don’t think Mourinho wants to have friends, or maybe that’s just the way he likes to appear.”
Galatasaray earned a 1-1 draw with Chelsea in the first leg to give themselves a chance of earning a spot in the quarter finals of the Champions League.
Whether they are able to progress or not is likely to depend on the performance of one man, Didier Drogba, who is returning to Chelsea for the first time since leaving after scoring the winning penalty in the Champions League final shoot-out against Bayern Munich in 2012.
The 36-year-old says he is apprehensive about returning to Chelsea, where he spent eight years, and says he still shares a 'special' relationship with the club's fans.
"It is the club where I experienced everything," Drogba said. "I experienced the highest level, big games - it allowed me to get closer to the best players in the world.
"It is a very special moment because I do not know what my reaction will be. I am quite apprehensive about it," he said of the second leg after the opening match in Istanbul ended in a 1-1 draw.
"I think I'm allowed to say that I will receive a warm welcome because I know Chelsea's fans and our relationship is really special," said the Ivorian.
"It will be great to see them again. I am looking forward to it."