01athletics
John Ecker
German basketball player and association football player.
People in sport
EVERY ROLE
MATTERS.
A global sports platform cannot speak only to athletes. iintroo is designed for everyone who trains, treats, teaches, protects, organises, studies and tells the story of sport.
All people · A–Z
Everyone in sport.
Browse all 503 profiles alphabetically, or search by name, sport, country or career.
Page 15 of 21 · 503 matching profiles
02Sport and exercise science
John Gaddum
British pharmacologist (1900–1965).
03Sport ethics · Anti-doping
John Gleaves
Researcher focused on ethics, performance enhancement and anti-doping history.
04cricket
John Gloster
Australian physiotherapist.
05Sport and exercise science
John H. Coote
Physiologist.
06Nutrition and dietetics
John Haddon
Scottish physician and writer.
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07association football
John Harkes
American soccer player and coach.
08association football
John Hartson
Welsh footballer (born 1975).
09Sport and exercise science
John James Rickard Macleod
Nobel prize-winning Scottish physician and physiologist; co-discoverer of insulin.
10Training theory
John Kiely
Researcher known for critical work on periodisation, stress and adaptation.
11Sport law, representation and rights
John M. Clayton
American lawyer and politician (1796–1856).
12Sport and exercise science
John Mayow
British chemist and doctor.
13Rugby union
John McGuigan
Council Member of the World Rugby Council; the body is World Rugby's decision-making council under the governing body's bye-laws. Member of the Professional Game Committee; the body supports World Rugby governance in the committee's stated remit.
14Sport and exercise science
John Needham
English biologist and Roman Catholic priest (1713-1781).
15Sport and exercise science
John Newport Langley
British physiologist (1852-1925).
16Rugby sevens
John Okoth
Rugby sevens player.
17basketball
John Paxson
American basketball player (born 1960).
18Sailing
John Philp
Member of the Growth of Sailing Committee in World Sailing’s appointed 2025–2028 governance structure.
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19Sport and exercise science
John Reid
Scottish physician, anatomist and physiologist (1809-1849).
20Sport and exercise science
John Scott Haldane
British physiologist (1860–1936).
21Sports media and commentary
John Shrader
College Professor / Sportscaster.
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22athletics
John Smith
American sprinter and athletics coach.
23Clinical sport psychology
John Sullivan
Clinical psychologist and performance consultant in professional sport.
24association football
John Thorrington
American soccer player and executive.
Cross-disciplinary by design
No single role sees the whole system.
Return to sport
Athlete · coach · physician · physiotherapist · psychologist · S&CA decision is safer when medical recovery, physical readiness, confidence and sporting demands are considered together.
Safe competition
Organiser · official · doctor · safeguarding lead · lawyer · federationEvent safety connects emergency planning, policy, reporting pathways, athlete rights and operational reality.
Career transition
Athlete · psychologist · educator · agent · family · employerIdentity, study, work, contracts and mental health do not fit inside one professional silo.