Udinese's trip to Chievo on Saturday has been disrupted by a training ground spat that has resulted in disciplinary measures being taken against Maurizio Domizzi.
Coach Francesco Guidolin has dropped Domizzi from the match day squad following the centre back's midweek bust-up with Colombian wing-back Pablo Armero.
Guidolin said Domizzi's reaction to the incident -- he walked out of training without permission -- earned him his sanction.
"He behaved in a way he shouldn't and that's why I've taken this decision," said Guidolin.
"It's painful, I think it's the first time in my 25-year career that I've taken this type of decision, but I've taken it."
While Domizzi misses out, Guidolin can at least call on a number of other first team regulars previously missing.
"We're in good shape physically, we've got (Dusan) Basta, (Antonio) Floro Flores, (Mehdi) Benatia, (Diego) Fabbrini and (Christian) Battocchio back so from that point of view, I'm confident.
"It will be a tough match with many difficulties. Chievo put champions Milan in a lot of difficulty.
"I know (Domenico) Di Carlo and his players, they're a very solid group."
Udinese are fourth and trail Lazio in third and the final Champions League qualifying place by three points.
Chievo are stuck in mid-table.