Aaron Mooy says Huddersfield Town must peform better if they are to avoid relegation this season from the Premier League.
The Terriers went down 4-1 to West Ham on Saturday. The loss has seen the club drop down to 14th, only four points above the relegation zone.
Eleven clubs are within touching distance from the bottom three spots, with ninth-placed Everton on 27 points and Swansea City last-placed on 17.
Mooy believes Huddersfield's fate is in their own hands.
"You can't control what other people are doing, you can only control what you are doing on the pitch," the midfielder told The Huddersfield Examiner.
"At the end of the day we must perform better to stay in the Premier League."
Mooy said the defeat to the Hammers was down to the Terriers' own errors.
The victory meant West Ham jumped above Huddersfield into 11th.
"We made far too many mistakes and you can't do that against a team of their quality, their goals came to them far too easy," the Australian admitted.
"We were really positive going into half-time, and we were looking good and possibly could have gone on to win it. However to concede so early was very hard to take because you immediately go from a high to a low.
"After they scored the next two they just sat in and made it very hard for us to get through them. They then used their pace on the counter attack to hurt us even more. We need to cut out those mistakes because you will never win a game in the Premier League if you keep giving the opposition easy goals like we have.
"We just have to learn from it, keep moving forward and keep a positive mind and think we can do better. Joe Lolley did really well to get the goal that he did, he showed great character because mentally to come back from what had happened previously is credit to him.
"We came out for the second half and to concede a goal within 10 seconds of the half starting is very disappointing and not good enough really."
The West Yorkshire club next face Stoke City, another side battling against the drop, on Saturday.