MIAMI — It may have gone from bad to worse for the Knicks’ bench.

In the midst of another poor performance, Immanuel Quickley went down with what looked like an ankle or a knee injury with 6:15 left in the fourth quarter of the Knicks’ ugly 105-86 Game 3 loss and didn’t return.

He did walk off under his own power, which was a good sign. 

The team’s second unit can’t afford to lose Quickley.

It is already struggling mightily.

An area that was supposed to be a strength has become a weakness. 

The Heat’s second unit against outplayed their counterparts, continuing a series-long trend as they took a 2-1 series lead.