A bicyclist was critically injured when a drunk driver struck him in Queens, cops said.

The cyclist was riding down Queens Plaza North near 29th Street approaching the Queensboro Bridge at around 2:15 p.m. Tuesday when an intoxicated driver in a black Mercedes hit the back of his bike and knocking him to the ground, police said.

The victim was rushed to Cornell Hospital in Manhattan and is listed in critical condition, cops said.

The driver of the Mercedes was taken into custody at the scene and is expected to be charged with driving under the influence.