Rosicky started only five games in the Premier League this season and had been tipped to leave Emirates Stadium on a free transfer this summer before Arsenal took up an option to extend his contract by a further year.
The 34-year-old is quoted as telling iSport in Czech Republic: “Since Arsene Wenger took the option in my contract, I haven’t even been on the bench. I am laughing but it’s not funny.
“It’s frustrating but I am a professional. Even if you lose your place, you must be still prepared because the situation can change.”
Rosicky also admitted his disappointment at missing out on a place in Arsenal’s FA Cup final squad, saying it made “no sense” that he was not included despite being fit.
Jackson Martinez’s agent, meanwhile, has revealed the striker is set to leave Porto amid fresh speculation he is a target for the Gunners.
“There is a club that’s willing to pay €35m for the buy-out clause,” said Henrique Pompeo.
“The deal will be closed in the next few days.”