Abstract
There are losses that feel personal, and then there are losses that seem to echo far beyond your own life—this was both. When I learned that Dr Lyle J. Micheli had passed away, it wasn’t just the absence of a friend and mentor that settled in but the quiet recognition that the world had shifted. This was a man who had changed the course of medicine for young athletes, who had guided countless lives with a steady hand and generous spirit—and yet, to those of us who knew him, his greatest impact was often found in the small, personal moments where he chose to invest in someone else’s future.
At some point in life, nearly everyone arrives at a crossroads—a moment when the path forward is uncertain, the stakes feel high, and the margin for error seems uncomfortably thin. These are the moments that test not only our resolve but also the invisible network of people who have shaped us. Among those influences, mentors stand apart from all others. They do more than offer advice; they recognize potential before it is fully formed and, at times, they redirect a life entirely.
Few stories illustrate this more powerfully than that of Dr Lyle J. Micheli, widely regarded as a founding father of pediatric sports medicine. His career would go on to transform the treatment of young athletes, emphasizing that children are not simply small adults, rather individuals with distinct anatomic and physiologic needs. Yet, like so many impactful lives, his trajectory was not inevitable and, at times, was uncertain. It was shaped—decisively—by the intervention of someone who chose to care.
Father Dunstan Morrissey saw something in Lyle during high school that may not have been obvious to others. Whether it was raw intellect, quiet determination, or simply untapped promise, Father Morrissey took a personal interest in him. More important, he acted on that belief. By guiding Lyle and helping him gain admission to Harvard College, he didn’t just open a door; he altered the entire landscape of what was possible. It was implausible that an adolescent from a coal mining town in Illinois, who faced challenges after losing his mother when he was 7 years old, would gain entrance to Harvard College and eventually Harvard Medical School.
This is what mentors do at their best. They don’t merely point out the fork in the road—they help you choose and sometimes even build the road that wasn’t visible before. In moments of uncertainty, their confidence can substitute for our own. Their perspective can widen our narrow view. Their willingness to invest time and energy sends a powerful message: “You matter, and your future is worth shaping.”
It’s easy to think of mentorship as something formal or institutional, reserved for medical school classrooms or structured time during residency and fellowship. Many residency programs assign a “mentor” to every incoming resident for the first 2 years of the residency, but being a true mentor goes far beyond the walls of hospitals and laboratories. The story of Lyle Micheli reminds us that mentorship is often deeply personal and sometimes spontaneous. It can come from a senior physician, a teacher, a coach, a neighbor, or anyone willing to take an interest in another person’s potential. What matters is not the title but the intention.
We often underestimate the ripple effects of these interventions. One decision—to encourage, to guide, to advocate—can echo across decades. In Lyle Micheli’s case, that encouragement ultimately improved the care of countless young athletes around the world. The chain reaction from one mentor’s belief extended far beyond a single life. As a former fellow, and for all the fellows whom he entrusted at Boston Children’s Hospital, his steady hand now guides my hand, and his sharp mind continues to influence me. This goes far beyond medicine, and as leaders within our own communities, we have the ability to be a powerful influence.
In a culture that celebrates independence and self-made success, it is easy to overlook one of the most powerful forces behind personal growth: mentorship. My initial intent was to write this editorial about the importance of mentors and “paying it forward.” Lyle Micheli’s life is emblematic of a life served as a mentor; the physicians whom he inspired and guided can’t be found in his academic publications, book chapters, presentations, and professorship. I was blessed to have Dr Lyle J. Micheli and Dr Robert E. Leach as mentors. Sadly, I never took the opportunity to express my eternal gratitude to Lyle for helping to shape and change the trajectory of my career and life.
When I reflect on a >35-year career, there have been incredible mentors within AOSSM who guided generations of surgeons. It becomes akin to a biblical lineage that continues to produce offspring from the initial vine. I started to write the names of surgeons who have had a profound influence across the globe, not in their scientific endeavors and academic work, rather in influencing, mentoring, and inspiring younger generations whose lives they touched in meaningful ways. The list became so lengthy that it would require publication in OJSM to allow an appropriate page count—you can find their names and biographies in the AOSSM Hall of Fame: https://www.sportsmed.org/membership/awards/hall-of-fame.
That raises a challenging and hopeful question for all of us: what if we did the same—not on a grand scale, not with the expectation of global recognition, but in small deliberate ways? What if each of us took the time to meaningfully invest in 5 young lives—to notice, to encourage, to guide when the moment calls for it?
The math is simple, but the implications are profound. Five lives multiplied across communities, generations, and networks becomes something far greater than the sum of its parts. It becomes a quiet force for change, one that doesn’t rely on institutions or headlines but on human connection and belief. At every decision point, there is uncertainty, but there is also opportunity—not just for the person standing there but for someone else to step in and help shape what comes next. If we embrace that role, even in modest ways, we may never fully live to see the outcomes. However, we can be certain of this: the trajectory of a life can change, and through it, the world can too.
In a society that focuses on life years—if you truly want to be immortal—pay it forward.
