"In the first minute of the second half he [Helguson] showed his intent when he had the sliding chance and from then on he showed his maturity, he showed the fact he was a man coming into the game, he worked hard and his combinations with Danny Graham I thought were excellent."
As for the game the Hornets boss said: "Certainly at 2-0 down at half-time, if you'd have said 'would you take a point?' I would have said 'yes'.
"In the first half we had plenty of possession but didn't turn that into goalscoring chances. We were countered a couple of times and I was disappointed with that because the boys, so far, have prided themselves on being a team who are very alert and alive to the way the other team plays tactically.
"I was disappointed at half time but to go out in the second half and play like that and have the courage and determination to dominate the way we did, I've got to be incredibly proud of the players."
Leicester boss Nigel Pearson said: "It's disappointing. It's two points dropped and the fashion which we conceded the goals was very disappointing.
"I thought we played some great football [in the first half] and I thought the second goal was fabulous - a great move and a great finish. So I suppose that makes it even more disappointing because we're waiting for our first away win and, unfortunately today, we threw it away. But that's football. It's frustrating, but I've got every confidence in the players that we'll put it right and move forward."