Newcastle United fans were left disgruntled watching their side lose 3-0 to Leicester City at the weekend.
Newcastle have frequently disappointed at St. James’ Park this season, and McClaren has had to take the brunt of fans’ frustrations.
The former England boss has regularly been booed while trying to applaud Newcastle’s supporters at the end of the match.
And he said to the Chronicle: “I understand the frustration of the fans and we will get back on the training field on Monday to get consistency back in our results.
“That was nowhere near good enough. We have to roll our sleeves up and we know we have the talent. We have to fight for that every day.”
McClaren has not made a good start as Newcastle boss, and there is rising discontent at his leadership.
The Magpies appeared to have started turned the corner after a poor start, but their performances of late have suggested that they have regressed.
Newcastle were poor despite beating Bournemouth 1-0 before the international break, and they were battered by Leicester City yesterday.
The Foxes won 3-0 against Newcastle, leaving McClaren’s side sitting dangerous above the relegation zone.