Spezia have quickly moved on summer signing Samuel Mraz.
Mraz was snapped up by Spezia after coming off contract at Empoli this summer. He signed a three-year deal with Spezia in August.
But it was announced last week that Spezia has moved on-loan to Slovan Bratislava with a permanent option included.
Slovan had signed him to increase the internal competition ahead of Europa Conference League group stage as well as domestic duties.
Midfielder Mraz, 24, is a Slovakia international.