The Mexico international will spend 2015-16 in Portugal after agreeing a deal with the Estadio do Dragao giants.
Porto (@FCPorto) August 31, 2015
The deal will see the exciting winger spend the campaign at the Estadio do Dragao, with his temporary employers having the option to make the switch permanent for €6 million, £4.4 million, next summer.
Layun will wear number 21 at his new club, with the allure of playing in the Champions League surely a key factor in his decision to leave Vicarage Road.
The Mexican has started two of Watford’s four Premier League games so far this season, scoring in the 2-2 draw against Everton at Goodison Park on the opening day of the campaign.
The 27-year-old only moved to the Hornets in the January transfer window, playing 21 league games in total for the club and scoring one goal before departing.
Layun was a player that helped Watford in their promotion to the Premier League last season and the news of the deal will surely be confusing for a section of the club’s fans.