Wigan have announced Uwe Rosler as their new manager after agreeing compensation with Brentford.
Arsenal manager Arsene Wenger feels loan deals should be treated just like permanent transfers.
Fiorentina have purchased half of winger Juan Cuadrado's playing rights from Udinese following a successful season on loan in Tuscany.
The 25-year-old Colombian originally joined La Viola on a year's loan for the 2012-13 Serie A season, in which he scored five goals and provided seven assists in 36 appearances, but the terms of the new financial agreement commit him to a second year at the Stadio Artemio Franchi.
A statement published on Fiorentina's official website read: "Fiorentina have activated the option to purchase, on a co-ownership basis, the playing rights of Juan Guillermo Cuadrado Bello of Udinese."
The versatile Cuadrado, who is equally comfortable playing as a defensive wing-back, originally joined Udinese from Independiente Medellin on a five-year contract in 2009 before spending the 2011-12 campaign on loan at Lecce.