Diego Costa has reignited his feud with Antonio Conte by taking a swipe at his former boss prior to Chelsea's Champions League clash with Barcelona.
Before the match at the Nou Camp, Costa uploaded a picture of the Chelsea line-up on his Instagram story, but scribbled out Conte's name.
Costa had fallen out with Conte back in the summer after a text message from the Italian ended his Chelsea career and prompted him to go on strike in Brazil.
Diego Costa put a snap of Chelsea's line-up on Instagram, but erased Antonio Conte's name
Conte and Costa traded barbs in the summer after they had a bust up over a text message
The pair traded barbs during Costa's stand-off, in which he accused the club of treating him like a 'criminal', before he completed his return to Atletico Madrid in January.
Despite Costa now being happily settled back in Spain, it seems the forward has still not forgiven Conte over their text message row.
Following Chelsea's Champions League exit at Barcelona on Wednesday night both Frank Lampard and Rio Ferdinand couldn't help but wonder if the result would have been different had Costa been on the pitch.
Conte's side put in a gutsy performance but failed to capitalise on their chances with Barca's superior finishing punishing them for it.
Lampard said: 'Credit to Chelsea for trying but you have to be ruthless, if you aren't you get punished in this competition.
'I don’t mean to go back to years gone by but if they had a Costa or a Drogba you do feel by hook or by crook they would have finished one of their chances.'
Ferdinand added: 'Conte was disappointed with the players that had come in and have left in the summer and I think tonight was a glaring example if they had a Costa, a Drogba even from back in the day this could have been a different result.
'I think the ball going up there, no disrespect to Olivier Giroud, who started the game well but kind of faded out of the game, it would have been a different game with someone up there like that.'
Costa is happily settled back at Atletico Madrid having ended his nightmare at Chelsea
Costa netted 20 times last season as Chelsea stormed to the Premier League title in Conte's first season in charge but started the summer with a text from the Italian informing him he was banned from their pre-season preparations and his career at the club was over.
Costa gave an exclusive interview to Sportsmail about his fall-out with Conte last August.
'You should be honest and direct to someone's face,' Costa said of how his Chelsea tenure came to a close. 'I was with the Spain national team, alone in my room, when it came through.
'It was a shock to get it like that. I was showing it to my team-mates and they could not believe how he had done it.
'I was angry at the time. Now I am more calm. I have not deleted the message. If people accuse me of lying, I can show them. It was clear, saying that he didn't count on me and wishing me the best for the future. Full stop.
'There was no conversation or talks. Conte has his mentality. He thinks it's the best way of working.
'He arrived from an Italian league where everyone is very serious and arrived in a dressing room where there are maybe more jokes.
Conte told Costa his time at Chelsea was over via text, which left the forward livid
Chelsea boss Conte on the sidelines at the Nou Camp on Wednesday evening
'The worst bit of all this, it is for the fans. They have always treated me so well — always, always. For this, I am sad. I hope they understand things happen in football.
'Conte is a great coach. He deserves to be where he is but it's his opinion. He has his reasons.
'I'm not a criminal! I don't think it is fair after all I have done to be treated like that.'