The mother of Ryan Todd, the 29-year-old man from Westminster, Md., who collapsed after his heart stopped at the U.S. Open on Thursday, called to say that her son is in critical but stable condition at Suburban Hospital.

Joyce Todd was grateful that her son was at the golf tournament on Thursday, his usual day off, and not at their farm working as he normally would be doing. Had he not been given immediate medical care, he likely would not have survived, she said. Police officers escorting Fred Funk’s group on Thursday rushed to his aid after Todd went down.

“If it wasn’t for the police officers, we were told that he would be dead,” Joyce Todd said.

Ryan Todd has a pre-existing heart condition called cardiomyopathy, which causes a weak and enlarged heart and often leads to a heart transplant. He will remain in the hospital and is expected to have a defibrillator implanted.