Lukas Podolski has claimed Arsenal manager Arsene Wenger showed a lack of respect by not saying goodbye to him when he left to join Inter Milan on loan.
The forward, who made his Inter debut as a substitute as Roberto Mancini's side drew 1-1 at leaders Juventus on Tuesday, said he had done "everything for the club I possibly could have."
And he hit out at Wenger, telling The Sun: "He said nothing to me. He did not call me or say goodbye. I don't need flowers or a kiss from him. But it is about respect, about saying goodbye. For me, respect is important.
"I did everything for the club I possibly could have. I don't believe I did anything wrong. I wish all of Arsenal and their amazing fans the very best for this season, and I see myself as a Gunner. Nothing from him to me, though -- but that is his way."
Podolski, Germany's third-most capped player with 121 appearances, scored 31 goals in 82 games for Arsenal after signing for Cologne in an 11 million-pound deal two-and-a-half years ago.
But he made only two starts this season, and said he believed he had deserved more playing time, explaining: "You do it on the training ground -- I trained well and wanted to play.
"Maybe he [Wenger] had other problems with me, but I don't know. He told me he did not want me to go just before the transfer window, but never said anything else after that."
However, in his prematch news conference, Wenger denied these claims, saying: "I deny that completely. I had many conversations to go out on loan and without my agreement he could not go.
"He did not get an opportunity to play here so I let him go. We have many players who can play in this position and only 11 can start. When a player of his quality doesn't get enough games, he goes. Too much competition is detrimental to players and we had too many players in this area. It is nothing to do with his quality."
Podolski's last appearance for Arsenal came at Galatasaray in the Champions League last month, when he scored twice in a 4-1 win but found himself back as a substitute for the visit of Newcastle in the Premier League four days later.
He said: "The big moment was after that Champions League game. I played a very good game against Galatasaray, and then I was on the bench again. I knew I had to move."
Meanwhile, Inter Milan president Erick Thohir welcomed Poldolski and fellow new arrival Xherdan Shaqiri, who has joined from Bayern Munich, saying he believed they "will do very well for us."
"I am very happy to see that the Inter fans are showing all this enthusiasm for Shaqiri and Podolski," he told Inter's official website, referring to the huge crowds that assembled at Malpensa airport on Thursday to welcome Switzerland international Shaqiri.
"We are working to do our very best, and Podolski and Shaqiri, guided by a great manager in Mancini, will help us significantly. My warmest welcome to both of them -- and Forza Inter, forever!"
Shaqiri hopes to play against Genoa at the San Siro on Sunday, when Podolski should also make his full debut.