Udinese have signed defender Maurizio Domizzi from Serie A rivals Napoli, who have replaced him by acquiring Salvatore Aronica from Reggina for a reported €3m fee.
No details for the Domizzi transfer have been released. The 28-year-old centre-back, who scored eight goals last season, six from the penalty spot, joins Udinese after two campaigns with Napoli.
Aronica, meanwhile, arrives at the southern club on a four-year contract.
The 30-year-old started out at Juventus before spells with Crotone, Ascoli, Messina and, from 2006, Reggina.
Udinese face Borussia Dortmund in the first round of the UEFA Cup while Napoli take on Benfica.