Pressure has built on the Newcastle boss following a run of five successive defeats, with a top-half finish now in jeopardy.
|9/2||Newcastle are 9/2 with bet365 to finish in the bottom half|
"We've got a lot of hard work to do before the Arsenal game," he told the Shields Gazette. "We definitely need to give a credible performance and hopefully get some points.
"Certainly, against Cardiff, we've got to win, whatever route it takes.
"Now we need to make sure we regroup this week.
"It's important that we win at least one of these last three games to secure [a top-half finish]."
Newcastle are still to play Arsenal, Cardiff City and Liverpool before the season ends.