Norwich City midfielder Anis Ben Slimane said the Championship side must stop losing concentration during games if they are to halt a disappointing run of results.
Saturday's 2-1 defeat at Sunderland was their third in the past four matches - with their only point earned coming from a goalless draw at Portsmouth.
The unexpected downturn followed back-to-back wins over Plymouth Argyle and Luton Town last month in which they scored 10 goals.
"We really need to be switched on [in] every single situation and every single second on the pitch," Slimane told BBC Radio Norfolk.