Ighalo scored the only goal in the 59th minute as Watford got their first victory of the season with a 1-0 result against Swansea.
A happy Super Eagles coach Sunday Oliseh tweeted after Ighalo’s goal: “Congrats to Odion Ighalo as his goal gives Watford all 3 Points over Swansea.”
Incidentally, Oliseh left both players out of the Super Eagles squad for the Africa Cup of Nations qualifier against Tanzania, which ended goalless.
Iheanacho’s goal, his first official senior strike, was also the winner, but came with more drama.
The youngster scored in the 91st minute, pouncing after the Crystal Palace goalkeeper spilled a Samir Nasri shot to give City their fifth straight victory.
Iheanacho had only been on the pitch for barely one minute after replacing Wilfried Bony.
Ighalo has now scored more league goals (top four tiers) than any other player in England in 2015: 18 in 23 games.