A Funeral Mass will be celebrated in St. Cecilia Church, 18 Belvidere St. Boston, Massachusetts on Saturday February 21st at 10:00 AM. Friends, relatives, colleagues, and those whose lives were touched by Lyle are welcome to attend.

To Live-Stream Dr. Micheli's funeral please use the following link: https://www.youtube.com/live/dszqlPNUVKs

Dr. Lyle Joseph Micheli, of Brookline, MA, passed away on Sunday December 14, 2025, after suffering complications following a medical procedure. Dr. Micheli was preceded in death by his parents, Margaret (Garcia) and Prodie Micheli, and his brother Thomas Joseph Micheli of Peru, IL. He is survived by his loving wife of 38 years, Anne (Jenks) Micheli of Brookline, MA, his former wife Linda McJannet and their daughters: Elisabeth Micheli of Sonoma, CA, and Amanda Micheli of Alameda, CA, Amanda's husband Eric Shank, and Lyle's grandson Leo Micheli-Shank.

A lifelong athlete and pioneer of youth sports medicine, Lyle Micheli was born on August 19, 1940 to a family of Spanish and Italian immigrants in the coal mining town of LaSalle, Illinois. His mother, who died when he was seven, nicknamed him "Butch." He attended high school at St. Bede Academy, where Father Dunstan Morrissey recognized Lyle's potential and handed him an application to Harvard. The first in his family to pursue a college education, he was awarded a full scholarship, attending Harvard College as a National Merit Scholar. There, Lyle's passion for sports grew as he boxed and played football, but he found his true passion on the rugby field. He graduated cum laude in 1962 with a degree in chemistry.

Continuing to follow Father Dunstan's advice, Lyle decided to pursue a medical degree, graduating from Harvard Medical School with honors in 1966. After his general surgery training at Cleveland´s Case Western Reserve, he joined the Harvard Combined Orthopedic Residency Program.

After completing his residency in 1972, Dr. Micheli served as a medical officer at Andrews Air Force Base, where he treated injured soldiers returning from Vietnam. He completed his military service in 1974 as a Major and returned to Boston, where he joined the Department of Orthopedic Surgery at Boston Children's Hospital and the faculty of Harvard Medical School.

The same year, Micheli co-founded the nation's first sports medicine clinic dedicated exclusively to young athletes, which ultimately became the Boston Children´s Sports Medicine Division. In 2005, he was appointed Full Professor of Orthopedic Surgery at Harvard and was named the O'Donnell Family Chair in Orthopedic Surgery at Boston Children's Hospital. The Lyle J. Micheli Chair in Orthopedic Surgery at Harvard Medical School was in the midst of being established at the time of his passing.

Dr. Micheli mentored generations of physicians, always advocating for the highest standard of compassionate care for patients. Through his leadership, he effectively created the field of pediatric sports medicine. Micheli saw what others had not yet recognized: that children and adolescents are not simply small adults, and their growing bodies require specialized knowledge, techniques, and care when faced with sports injuries. He authored over 350 peer-reviewed articles and reviews, as well as 26 books, including the four-volume Encyclopedia of Sports Medicine.

As Director of Sports Medicine at Boston Children´s from 1974 until 2019, Micheli grew the program into a thriving practice with 11 surgeons and 15 physicians. Advancing what he termed a "whole athlete" approach to Sports Medicine, the clinic also featured 30 other specialists, including podiatrists, registered nurses, physical therapists, athletic trainers, sports psychologists, registered dietitians, and social workers. A pioneer in dance medicine as well, he was the Boston Ballet Company's physician for over four decades and a medical consultant to the Boston Ballet School.

In addition to regularly covering local and regional sports and dance events as a team physician, Micheli volunteered with USA Figure Skating and The Boston Marathon, where he served as Medical Director of the finish line for 50 years. During the 2013 Marathon bombing, Micheli played an essential role in the trauma response at the finish line. Thanks in equal parts to his military experience and his careful preparation of medical services on site, his team saved lives by treating victims with improvised tourniquets and transporting them rapidly to emergency medical facilities.

Over the course of his career, Micheli also led numerous national and international organizations, including serving as President of the American College of Sports Medicine, Secretary General of the International Federation of Sports Medicine, and co-chair of the Olympic Sports Medicine committee focused on the well-being of young athletes. He was also inducted into the US Rugby Hall of Fame.

In 2013, he founded The Micheli Center for Sports Injury Prevention in Waltham, Massachusetts, with a focus on research to prepare young athletes in scholastic, amateur and professional arenas. At the Micheli Center, the first and only program of its kind, athletes receive an individualized prescription for decreasing their risk of injury. Micheli oversaw its expansion to a second site as well as the creation of a scholarship fund to offer services to kids in financial need. Nearly 62,000 athlete evaluations and sessions have been conducted since the centers opened.

Though his work ethic was relentless—it was estimated that Micheli performed over 70,000 surgeries over the course of his 59-year career—he led his teams with empathy and a sense of humor, never taking himself too seriously. He was a voracious reader of history and an avid outdoorsman, enjoying bicycling, hunting, and fishing above all. He made lifelong friends during his decades as a rugby player. He also cherished his time with his dogs, sharing a series of Cockapoo companions with his beloved wife, Anne.

The Boston Globe reported in his editorial obituary that Micheli never officially stopped working. It also noted, "Because of his longevity in the field, it became common for Dr. Micheli to treat three generations of many families at Children's Hospital and his injury prevention centers."

In an interview for StoryCorps by his daughter Amanda, she asked him how he would like to be remembered. Dr. Micheli replied, in his typically understated way, "as a good physician who was loyal to my patients."

Dr. Micheli's legacy will endure in every young athlete who receives specialized, compassionate care, in every physician trained in pediatric sports medicine, and in The Micheli Center for Sports Injury Prevention, which continues his life's work.

In lieu of flowers, the family requests donations to the Micheli Center in Lyle's memory.