If you're a dog lover, better grab a box of tissues. In this footage, a man gives CPR to a beautiful boxer named Sugar.

It's a harrowing scenario, but the dog pulls through thanks to the quick-thinking dog trainer who performed the resuscitation.

From the video's description on YouTube:

Canyon Crest K9 Training Center owner, Ron Pace, saves the life of a boxer with CPR during a regular training session. During the session, the dog suddenly collapsed and stopped breathing. Ron immediately applied CPR. Within a few minutes, the dog regained consciousness. Once the dog was resuscitated, the owner took him to the vet. It was later found out Sugar has Cardiomyopathy. We believe it's not just a coincidence that this dog's name happened to be SUGAR and his life was saved. Ron Pace has dedicated himself to training diabetic alert dogs to alert their owners to dangerous blood SUGAR levels.

Canyon Crest K9 Training Center owner, Ron Pace, saves the life of a boxer with CPR during a regular training session. During the session, the dog suddenly collapsed and stopped breathing. Ron immediately applied CPR. Within a few minutes, the dog regained consciousness. Once the dog was resuscitated, the owner took him to the vet. It was later found out Sugar has Cardiomyopathy. We believe it's not just a coincidence that this dog's name happened to be SUGAR and his life was saved. Ron Pace has dedicated himself to training diabetic alert dogs to alert their owners to dangerous blood SUGAR levels.