Chelsea striker Michy Batshuayi is struggling to make an impact at Valencia this season.
Wednesday night's defeat to Champions League opponents Juventus was his first start this term under coach Marcelino. In the LaLiga he has managed just 65 minutes of action in four games.
Marcelino has preferred Rodrigo Moreno, Kevin Gameiro and Santi Mina ahead of Batshuayi so far in domestic competition.
Batshuayi's arrangement with Valencia includes a permanent option set at €50m.