Bersant Celina admits he felt Swansea City's 3-0 defeat at West Brom was his responsibility following his first-half penalty miss at The Hawthorns.
The Swans were trailing to a Chris Brunt free-kick when Mike van der Hoorn was fouled by Craig Dawson in the West Brom box and referee Scott Duncan pointed to the spot.
In the absence of top-scorer Oli McBurnie, Celina assumed the responsibility but his standing foot slipped as he went to strike the ball and was only able to scuff the ball off the spot before it was cleared.
Despite the Swans having a number of chances, with Baggies keeper Sam Johnstone in inspired form, further goals from Mason Holgate and Jay Rodriguez condemned the Swans to a fifth straight away defeat.
And Celina admitted he felt his miss from the spot had been key.
"I felt that was the key moment, I feel like I have cost the team and the game would have been different," he said.
"I think we would have had a great chance to win, I want to score goals and help this team and I did not do that this time.
"It does not make me a worse or better player."
But the Kosovo international said he would not hesitate to take a penalty again if the chance arose.
"I am normally very confident with penalties. This just did not go my way, it was a slip," he said.
"But if I have another chance I will be the first to go up there and be confident to try again."