"The decision to take the captain's armband off Icardi was hard and painful because we know all about his value", Spalletti said at a news conference.
This will only fuel speculations about ICARDI's exit from the club especially since he has yet to renew his contract.
However, that has done little to assuage doubts over his future and head coach Luciano Spalletti - speaking after a 1-0 win over Parma at the weekend - expressed his frustration.
"He [Icardi] was called up but didn't want to travel with the rest of the squad to Vienna". Now we have to focus all our attention on Thursday's game'.
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"But it was divided between all parts of the club and was made exclusively for the good of Inter. Obviously he was disappointed, but there are things going on which are disturbing him and the team". Chelsea will never have a better chance to sign him than we do now.
The Slovenia global, 34, joined Inter from Udinese in 2012 while Icardi arrived from Sampdoria in 2013, taking over as captain from Andrea Ranocchia in 2015. "We hope that the players react properly".
Icardi (9 Serie goals this season) is under contract with Inter until 2021, and there's been no movement on talks over a new contract extension.
Meanwhile, Wanda Icardi, his wife and agent, said Icardi was not in a rush but wanted to stay.
"There has been a lot of nonsense said about Mauro, for example a supposed fine that did not exist", she said in recent comments to reporters. "I can not understand if these bad things come from outside or within".