Pierre-Emerick Aubameyang has hit out at "a lot of bla bla" in a story posted on his Instagram.
The Arsenal striker was unable to find the net in his side's 1-0 reverse at Manchester City on Saturday.
Aubameyang is without a goal in his last four games having scored on the opening weekend of the season at Fulham.
The 31-year-old recently put pen to paper on a lucrative new deal in north London following months of speculation.
But his record since signing his contract has been criticised which has seen Aubameyang hit back on social media.
He posted a picture of himself working in the gym with the words "A lot of bla bla. At the end we speak as usual".
Much is expected of the Gunners this term under Mikel Arteta following an impressive end to last season.
The Spaniard delivered the FA Cup and then the Community Shield before guiding Arsenal to three wins from five Premier League games.
Aubameyang is expected to play a key role for the north London outfit, but former top flight striker Darren Bent has accused him of letting his levels drop since extending his Emirates stay.
"It's not the fact he hasn't scored a goal, it's the performances," Bent said on TalkSPORT.
"Before he signed his contract he was absolutely everywhere - running back, tracking back, putting tackles in, breaking forward. There was a real hunger and intensity to his game.
"At the minute, you can see there's been a massive drop off. I don't know if it's coincided with the new contract, but you can tell that he's not playing with the same intensity that he had before.
"When you focus so much on getting a new deal like Aubameyang did, you'll run that extra yard and make that extra effort.
"When he sits down now and analyses his performances before and after the contract he'll see that there's been a massive change."
* Sign up to the Mirror Football email here for the latest news and transfer gossip
