The Knicks hadn’t played in a week because of the All-Star break. It looked like they hadn’t played in a year.

They are a mess, and picked the worst time to show their worst qualities on the eve of the trading deadline.

In their first game out of the break, the Knicks didn’t just get humiliated last night by the Pacers, they lost their composure and couldn’t have looked further away from being championship material in getting destroyed, 125-91, at Bankers Life Field House.

It’s crisis time after their fourth loss in five games.

“We didn’t show up,” coach Mike Woodson said. “They whipped our [butt] from beginning to end. It’s unacceptable. We just didn’t compete. Our effort was non-existent, like we were still in the All-Star break. I’m very shocked. I thought we had a good practice and nothing carried over. We can’t play like this and stay at the top of our division. That’s not going to happen.”

“There wasn’t no effort,’’ Anthony said. “Hopefully this game will give us a wake-up call.”

Woodson said before the game the Knicks didn’t have any trades working, but certainly they looked in need of heart transplant after falling behind by 39 points in the third quarter. Woodson ended his postgame press conference prematurely, bolting after being asked if he needed to make changes.

The 32-19 Knicks’ lead over Indiana for the second seed in the East is down to a half-game, with the surging Nets only one game behind and the Bulls just two back.

Most alarmingly, the foul-plagued Knicks looked like a team with no leadership. Woodson never looked so puzzled after his team was outscored 44-26 in the second quarter and 74-44 by halftime.

“We got our [butt] whipped,” Tyson Chandler said. “It was a good old [butt]-whooping. When you get beaten this bad, it’s everybody from the top down.”