At 14 He Was the Top Junior in the World. At 32 He Finally Won It All.

Christian Harrison stood over a serve with a U.S. Open title on the line. He and his doubles partner, Britain's Neil Skupski, were up a set and led 7-6 in the second set tiebreaker, the extra game played to decide a tied set. Harrison hit a hard serve into his opponent's body that handcuffed him, Skupski tapped away the easy volley, and they were champions.

Harrison remembers feeling calm, not triumphant. "Is it done? Is it really done?" he thought. He smiled with what he called genuine happiness, and felt most proud that he had stayed relaxed in the biggest moment of his life.

Harrison lost almost a decade to injury and rebuilt his career in his 30s by giving up singles, accepting what he could not change, and playing doubles because he still loved the game.

At 14, he was the highest ranked player in the world for his age and training in Bradenton, Florida, when players on the professional tour were starting to know his name. He strained a hamstring in practice, and a comparison scan of his other leg happened to show something on the bone. It was misdiagnosed for months before doctors identified a bone infection, and it began to grow quickly and hurt.

Some people told the 15-year-old he would never play again. A children's specialist at the Mayo Clinic said he needed surgery the next day, warning that the infection could cost him the leg. Surgeons drilled a hole through the bone to cut it out, and Harrison spent seven months injecting antibiotics through a tube threaded into a vein in his arm. He said he was never discouraged then, in part because time was on his side and in part because hospital visits showed him people in worse shape.

That surgery was the first of many. From 2009 to 2018, covering what should have been his high school and college development years, Harrison had eight major operations on his femur, both hips, his shoulder, his wrist, both groin muscles, and his femur again, plus a bout of mononucleosis, a viral illness that causes deep fatigue.

Harrison believes only the first operation was necessary, and said the later operations on tendons, ligaments, and joints caused muscle loss as he compensated for one repaired spot by overloading another, which snowballed into new injuries. The hardest part was returning to the court when doctors said he should feel better and finding he could only play at 70 percent, unable to dig in the way he needed and straining something whenever he tried for an extra 10 percent.

By 28, he could only manage three-month stretches in singles, the one-on-one game that demands long rallies and hard running. Struggling with severe plantar fasciitis, painful inflammation in the sole of the foot, he told himself that another long layoff would mean a move to doubles, the two-on-two game played on a smaller area with shorter points.

That moment came, and in 2024 he restarted on the challenger circuit, the minor leagues of tennis, entering week to week with whoever would play with him. He needed five or six challenger titles just to lift his ranking enough to get into tour events and the 2025 Australian Open, one of the four Grand Slam tournaments that anchor the sport.

He broke through with Evan King, a fellow American he had known since he was seven or eight. After a last-minute pairing with another partner led to a final in Auckland, he and King committed to two months together and won tour titles in Dallas, Acapulco, and Brussels. Then, with Skupski, whose quick reflexes at the net paired with Harrison's return of serve, he won the Australian Open and then the U.S. Open. At both wins, he was interviewed on the court by his older brother Ryan, a former professional turned television commentator, which he called better than any tennis memory he could have imagined.

Weeks later, he said the reality had not set in. What stayed with him were the pictures of family and friends who had traveled just to watch, and who seemed even happier than he was.