Watford signing Mauro Zarate has taken aim at Fiorentina management.

Zarate wrote an open letter to Fiorentina fans after his move to Watford, mentioning “a bitter taste in the mouth" and “pointless controversy."

“Words are nothing compared to all the emotions that I felt and will keep in my heart…" wrote Zarate on Instagram.

“I just feel the need to say 'thank you Florence' and with a bitter taste in the mouth I leave this beautiful city that welcomed me like a son, protected and cuddled in this difficult time.

“Now is not the time for pointless controversy, but considering the situation over the past few months, I had to give up and change route.

“I just hope that in the very few occasions I had on the pitch, I showed you at least half of all you gave me!!! Thank you Florence, thank you Viola fans."