Crystal Palace captain Luka Milivojevic felt they let West Ham off the hook for Saturday's 1-1 draw.
The Eagles went down to a Mark Noble penalty within the game's opening half an hour, but pulled back a point through Wilfried Zaha on the 76th minute.
However, according to Milivojevic, Zaha's goal could have been added to throughout the match.
He said, "[I'm] Pleased with how we played and how many chances we created. In the end, we scored just one goal. What can I say? I'm very proud with how we played over 90 minutes, I think the first-half as well we played well and created two or three chances.
"In the second half, I don't even remember how many chances we created. In the end, we scored. I was sure that, because we were going for the second one and we felt the fans were behind us, the crowd, that we'd go for the second goal. But they're an experienced team, they dealt in the last 10 minutes with that.
"We were unlucky today not to score two or three goals."