It is the best Christmas present ever for these jubilant Toronto parents.

The heroic actions of a rookie Toronto Police officer to save the life of Liam, who is four-months-old, is rightfully garnering a lot of attention this Christmas season online and by his colleagues.

Const. Ivan Yeung is photographed helping to save a child using tiny chest compressions on November 18. The child was in distress and laying on a blanket on the ground.

Yeung, who works at 52 Division, said he was in the downtown area when the call came in.

“When I got there, l saw a baby lying on the sidewalk and his fist appeared to be clenched lightly,” the officer told Toronto Police reporter, Ron Fanfair. “As I got closer, I realized the chest wasn’t moving and the baby wasn’t breathing.”

The officer performed CPR on the boy for about 90-seconds before paramedics and firefighters arrived and took him to the Hospital for Sick Children for treatment.

Yeung later credited his actions to the excellent training at the Toronto Police College.

“I heard him (police trainer) telling me that you have to save that baby,” he recalled. “I could hear him telling me to use my finger to push down on his chest.”

“Great work. Now that’s first response,” tweeted Chief Elvis T. Silva, St. John Ambulance Toronto Central.

“This picture…..says it all. Safe and healthy holidays for all first responders,” wrote retired homicide cop, Mark Mendelson..

Yeung has since met Liam’s family who are ‘eternally grateful’ for saving their son.

The child’s mom, Danielle Sheinberg, said Liam had undergone an earlier heart procedure.

“I can’t thank you guys enough,” Sheinberg said of the officers. “I could have been the worst day of my life, but it turned out to be the best day of my life.”

This was not the first rescue for Yeung, who only joined the force 10-months ago.

In the early-morning of August 3, he, and his partner, responded to a call of unknown trouble at the Harbourfront Centre.

They found an unresponsive woman in the water.

The former lifeguard jumped in Lake Ontario and saved the woman’s life.