Watford are closing in on former Premier League attacker.
West Bromwich Albion are expected to be busy in the transfer market this month.
The Argentine left the club in January for Italian side Fiorentina.
The Argentine has struggled at Fiorentina since leaving West Ham.
Mauro Zarate left West Ham for Fiorentina in January.
Mauro Zarate can't seem to make his mind up about West Ham United after he left for Fiorentina last month.
Mauro Zarate is putting his spell at West Ham behind him.
The Argentine is ready to face Spurs for new club Fiorentina.
Former Birmingham City striker Mauro Zarate took a pop at manager Slaven Bilic after leaving West Ham United for Italian side Fiorentina last week.
The Argentine was not keen on playing out wide.