Inter President Massimo Moratti is said to be furious, but Diego Forlan's agents insist they didn't realise he'd be cup-tied.
The Nerazzurri discovered yesterday the striker cannot feature in the Champions League until January, as he played for Atletico Madrid in the third preliminary round of the Europa League.
So did Antonio Nocerino, but he can play for Milan because his Palermo side were eliminated, whereas Atletico reached the competition proper.
Not only can Forlan not play, but the UEFA list cannot be changed either, so the likes of Luc Castaignos and Andrea Poli are left out to make room for the Uruguayan international.
“It was a surprise for us as well,” insisted agent Bolotnicoff. “We assumed he'd be able to play in the group phase of the Champions League.
“Diego was angry, as he wanted to play in the most prestigious competition straight away, but his anger will transform into energy to do well in Serie A while he awaits the knockout rounds.”
The representatives also denied reports they knew what was happening and opted not to tell Inter during negotiations.
“There was nothing to hide. He played an international game that was shown on television all over the world. In fact, he played two, as he was in both legs.”
Think you know your Italian football? Share your knowledge, tips and comments to win cash prizes in OLBG's tipster competition - £5,000 monthly.