Manchester City striker Carlos Tevez has stoked up his war of words with Manchester United after calling former team-mate Gary Neville a "boot-licker" and an "idiot" during an explosive interview on Argentinian radio.
Tevez swapped United for City in a controversial summer transfer and has found himself in the spotlight this week following his actions in the Carling Cup semi-final first leg at Eastlands.
The Argentina striker scored both of goals in City's 2-1 success and his celebrations have made headlines.
Tevez and United captain Neville exchanged gestures after he scored the first goal from the penalty spot.
Neville had endorsed manager Sir Alex Ferguson's decision not to pay the reported £25million fee to sign the previously on loan striker on a permanent basis in the build-up to the feisty encounter.
"In all the press here, Gary Neville came out and stood by Ferguson's comments, saying that I wasn't worth £25million," he told ESPN Radio.
"I thought he was in the wrong because we were team-mates and I never disrespected him, I always respected him.
"I feel he was a boot-licker when he stood by Ferguson's comments that I wasn't worth that money.
"From a former team-mate it hurts, from a coach it doesn't surprise me."
Meanwhile, Tevez has attempted to explain his controversial goal celebrations after he appeared to goad United fans and Ferguson.
"I would never do that gesture towards the fans, I would never show a lack of respect towards people. It was directed at Gary Neville," he continued, referring to the cupping gestures he made around his ears.
"Just as I was running off to celebrate the penalty I had scored, I came across Gary and I said to myself, 'shut your trap, keep quiet'.
"I didn't go overboard in my celebration and it was directed at Gary, not at Ferguson and not at the fans. I didn't even look at Ferguson.
"You have to do your talking on the pitch. I know that Ferguson loves me, that's why he always talks about me."
Tevez's comments are likely to do little to ease the tensions between the two clubs ahead of next week's second leg at Old Trafford.
"I was the first to sit down to have lunch in the team hotel and all the papers were laid out," he continued.
"I looked at them as, although I couldn't read them, there were (photos) of Gary Neville and they were talking about me.
"Then I asked my team-mates what it said.
"I thought to myself, 'what's this idiot talking about me for when I never said anything about him, when there was never any (problems) with us?'