Super Eagles forward signed for newly-promoted English Premier League side Nottingham Forest in a deal worth £20m.
Forest announced Dennis’ capture on their website late Sunday evening.
The club wrote on their website, “Nottingham Forest is delighted to confirm the signing of striker Emmanuel Dennis from Watford.
“The 24-year-old forward arrives on Trentside having hit double figures for The Hornets last season, returning 10 goals from 33 Premier League starts.
“Prior to arriving in England, Dennis’ first professional venture was in Ukraine’s top-flight with Zorya Luhansk before enjoying a productive four-year spell in Belgium with Club Brugge, notably scoring twice in a 2-2 draw at the Santiago Bernabeu against Real Madrid in the group stages of the 2019/20 UEFA Champions League.
“With seven international caps to date for Nigeria, the pacey forward links up with fellow countryman Taiwo Awoniyi to bolster The Reds’ attacking options.
“Welcome to The City Ground, Emmanuel!”
Awoniyi had earlier joined Forest from German Bundesliga side Union Berlin for a then club record fee of £17m, which has now been surpassed by Dennis.
Forest also announced the signing of Cheikhou Kouyate on a free transfer from Crystal Palace.