Watford are keeping tabs on Suso's situation at AC Milan.
The former Liverpool midfielder is coming up to a year with the Rossoneri since his January move last season.
However, Suso has failed to nail down a regular place in Milan coach Sinisa Mihajlovic's first team and is weighing up his options.
MilanNews.it says the Rossoneri are willing to make Suso available for the winter transfer window.
Watford are keeping tabs on the situation, where owners, the Pozzo family, can utilise the Spaniard for one of their three clubs - the Hornets, Udinese and Granada.