Newcastle defender Mathieu Debuchy insists unless his side improve the Magpies will see their season end on a low note.
The Magpies' home defeat by Swansea on Saturday made it five defeats in a row, with only one goal scored in the process.
"Everyone is very disappointed, of course," Debuchy told the Newcastle Chronicle.
"I have never known five defeats in a row.
"It is something which is not acceptable for a club like Newcastle United and a squad like ours. It is something we simply should not be doing."
However, the French full-back did take some positives from Saturday's defeat, insisting the loss was unjustified.
"I think we deserved at least a draw from that but we have to look back at the mistakes we made," Debuchy added.
"We lost from two set-pieces - a corner and a penalty - and that is nowhere near good enough."
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