Leicester City boss Claude Puel felt they were too wasteful of their 1-1 draw with West Ham.
Puel admits there was "frustration" at the final whistle in London.
Puel said: “A draw away, it's always interesting but I think it's a little bit of a frustration. At the end it was a draw just like our game at Stoke. We were leading them 1-0 and 2-1 and in the end it was 2-2, it was the same thing.
“We conceded a goal just before half time from a corner kick. We have to correct it and we have to find a clinical edge because we had a lot of opportunities and situations in the first half.
“We had to kill the game in the first half, but they scored just before halftime and came back with confidence. The atmosphere improved in the stadium and it was crucial to keep the draw.
“It was difficult to play the second half but the first half was promising for the future. We had good moves and found good space but at the end we have frustration."