Crystal Palace were previously heavily linked with Gregoire Defrel.
Gregoire Defrel has struggled since joining Roma from Serie A rivals Sassuolo, but Premier League strugglers Watford are still prepared to pay big.
The French striker was a key transfer target for Southampton this summer.
Tottenham Hotspur and West Ham United have been linked with Gregoire Defrel of Sassuolo in the summer transfer window.
Sassuolo's Gregoire Defrel is reportedly wanted by Leicester City, Southampton, Tottenham Hotspur and West Ham United.
Southampton are planning to rival Roma for Sassuolo striker Gregoire Defrel, but will have to pay big money for the 26-year-old.
West Ham are keen on in form Sassuolo striker.
West Ham United are reportedly keen on Sassuolo striker Gregoire Defrel.
With Dimitri Payet, Michail Antonio and Manuel Lanzini supplying the bullets, West Ham's new striker would not be short of ammunition.
Everton lost out to Arsenal in their Perez pursuit.