Carlos Carvalhal, the Sheffield Wednesday chief, says his players can ill-afford to take Charlton Athletic lightly as they prepare to head to the capital this weekend.
The managerless Addicks sit 23rd in the Championship, having gone 12 matches in all competitions without a victory.
In stark contrast, Wednesday are eighth in the table and go into their final fixture before the two-week international break on the back of an 11-match unbeaten run.
But, speaking at his pre-match press conference this lunch-time, Carvalhal said: “We know they are not in a good position but when a team is not in a good position they are dangerous because they want to change things.
“They (Charlton) have changed the coach in the last few weeks so will try their best.
“It’s a good challenge for them because we are unbeaten in 11 games so we must understand that. That’s why we must be alert and understand it won’t be an easy game. We know it will be difficult but we will be ready for it.
“I know we will be focused and take the game very seriously. We will fight for the three points and try to finish this period in a good way.”
Alex Lopez is pushing for a first-team return after shrugging off a thigh problem while Modou Sougou and Marco Matias have started running again following their injury lay-offs but are unlikely to be involved. Michael Turner (knee) remains sidelined.
Carvalhal, who confirmed several clubs have expressed an interest in taking out-of-favour striker Sergiu Bus on loan, added: “We will try to play nice and compact at Charlton and play our football. What’s more important for us is to focus on ourselves.
“I trust in my players and believe we will do well on Saturday. We know we must work very hard and it will be tough like all Championship games.”