The Hornets and Italy striker is off to Udinese for the rest of season. Here is how some Watford fans reacted to his move.
Watford's Stefano Okaka was linked with a move to Fulham last month but now appears to be in demand in Europe.
Leeds could do with a target man to provide an alternative.
A recent report suggested that Ranieri was looking to reunite with Watford's Italian striker, Stefano Okaka.
Watford outcast Stefano Okaka had a loan spell in the Premier League with Fulham in 2010, and could reportedly return to Craven Cottage.
Watford striker Stefano Okaka has been linked with Crystal Palace in the January transfer window.
Should Aston Villa renew interest in Stefano Okaka.
Nuno wants a new striker at Wolves and Stefano Okaka of Watford has emerged as a target again.
Stefano Okaka has barely played for Watford all season and could join Wolves in January with the Championship leaders renewing their interest.
Wolves want a striker in January and could target Stefano Okaka again after missing out in the summer.
Ronald Koeman has made his reputation as a canny, pragmatic manager in the Premier League but his Everton side were made to look naive by Watford as they maximised their opportunities to take all three points.
As part of our analysis of the Premier League transfer window we take a look at Watford FC.
With Mauricio Pochettino facing the Belgians tonight, it could be the ideal opportunity to scout potential new signings.