Pep Guardiola's charges were quick out of the starting blocks and mustered their first chance on target just nine minutes in as Fernandinho tested Heurelho Gomes just after Sterling miskicked from 12 yards out
The Nigerian has struggled to break into the Hornets' side since he was signed for a then club record fee last summer and looks set join the recently-relegated Tigers.
The Nigerian was the Hornets' record signing when he joined from Granada last summer, but, barring a couple of strong showings against Bournemouth and at Middlesbrough, struggled for much of his debut season.
Success has emerged on Hull's radar with the Nigerian international currently down the pecking order at Vicarage Road.
The German midfielder, who suffered knee ligament damage against Watford last December, could be in contention for a place in the squad for Monday’s home tie against Everton.
The Reds have won each of their last four curtain-raising fixtures to a Premier League campaign
The development was confirmed by the club
The winger will become the first Algerian to reach the milestone if he makes it onto the field, and has also scored against the Hornets in the last two league meetings between the sides
The Hammers have gone through a roller-coaster ride this season
Ighalo's form has nosedived in the last year, scoring just two goals this season for Watford
Ighalo's form has nosedived in the last year with only two goals this season
The Baggies want to bring in the 27-year-old as a direct replacement for Saido Berahino, who joined Stoke City earlier in the window
The Chinese club, managed by former Brighton boss, Gus Poyet, are in ongoing talks with the Hornets star and rivals, Hebei China, are also prepared to pay Ighalo £200,000-per-week
West Bromwich Albion's interest in Watford striker, Odion Ighalo, has cooled and Tony Pulis is turning his attentions to other targets. When negotiations with Stoke City stalled last week over the transfer of striker Saido Berahino, Albion…
The 27-year-old is thought to be a top target for Baggies boss Tony Pulis, who has money to spend following the club's takeover by Chinese billionaire, Guochuan Lai, last September.
A source has told Sky Sports News HQ that a fee of £17 million has been agreed between the clubs but another source claims talks are not yet that advanced
And after his Nigerian international teammate, John Mikel Obi, sealed a move to Tianjin TEDA last week, Ighalo may follow him to the Far East
The Lilywhites climbed into the top four for the first time since October thanks to a comprehensive 4-1 win at Vicarage Road, extending their winning run to four games
The visitors felt that they should have had a penalty soon after as Christian Eriksen's shot was blocked by the arm of Etienne Capoue, but referee Michael Oliver's decision to reject the appeals would matter little in the end
The Nigerian striker capped a perfect week when he struck his first goal since becoming Watford’s record signing this summer