Improvements in the management of diabetes mellitus in the twentieth century have made it possible for athletes with diabetes to compete in sport at a professional level. While it is rare for professional athletes to have type 2 diabetes, a number of notable athletes have type 1. Literature on the management of diabetes in competitive sports focuses on the difficulties with balancing energy and insulin intake during periods of strenuous exercise. The following is a list of notable sportspeople who have had diabetes during their careers. It does not include athletes diagnosed after retirement.
American football Jay Cutler, Denver Broncos (2006–2008) and Chicago Bears (2009–2016) quarterback, type 1. Mike Echols, Tennessee Titans (2002–2004) cornerback, type 1. Kendall Simmons, Pittsburgh Steelers (2002–2008) guard, type 1. Jake Byrne, San Diego Chargers, tight end, type 1 John Chick, Saskatchewan Roughriders (2007–2009, 2013–2015), Indianapolis Colts (2010–11), Jacksonville Jaguars (2011–2012), Hamilton Tiger-Cats (2016–2017), Edmonton Eskimos (2017); defensive end, type 1 Patrick Peterson, Arizona Cardinals (2011–2020), Minnesota Vikings (2021-2022) and Pittsburgh Steelers (2023); cornerback, type 2 Mark Andrews, Baltimore Ravens (2018–), tight end, type 1 Noah Gray, Kansas City Chiefs (2021–), tight end, type 1 Chad Muma, Jacksonville Jaguars (2022–2024), Indianapolis Colts (2025), New England Patriots (2025–) linebacker, type 1. Blake Ferguson, Miami Dolphin (2020–2024), long snapper, type 1. Adonai Mitchell, Indianapolis Colts (2024–2025), New York Jets (2025–) wide receiver, type 1. Brayden Narveson, Green Bay Packers (2024), Tennessee Titans (2024), placekicker, type 1. DeAndre Carter, Philadelphia Eagles (2018), Houston Texans (2018–2020), Chicago Bears (2020, 2024), Washington football team (2021), Los Angeles Chargers (2022), Las Vegas Raiders (2023), Cleveland Browns (2025), wide receiver, type 1.
Australian football Nathan Bassett, Adelaide, type 1. Jamie Cripps, St Kilda and West Coast, type 1. Jack Fitzpatrick, Melbourne, Hawthorn type 1. Brandon Jack, Sydney, type 1. Paddy McCartin, St Kilda, Sydney, type 1. Sam Reid, Western Bulldogs and Greater Western Sydney, type 1. Dale Weightman, Richmond, type 1.
Baseball Ron Santo, Chicago Cubs (1960–1973) and Chicago White Sox (1974) infielder, type 1, deceased (2010 at age 70). Sam Fuld, Chicago Cubs (2007–2010), Tampa Bay Rays (2011–2013), and Oakland Athletics (2014–) outfielder, later General Manager of the Philadelphia Phillies, type 1. Mark Lowe, Seattle Mariners (2006–2010, 2015), Texas Rangers (2010–2012), Los Angeles Angels of Anaheim (2013), Cleveland Indians (2014), Toronto Blue Jays (2015), and Detroit Tigers (2016) pitcher, type 1. Brandon Morrow, Seattle Mariners (2007–2009) and Toronto Blue Jays (2010–2014) pitcher, type 1. Dustin McGowan, Toronto Blue Jays (2005–2008, 2011, 2013–2014), Philadelphia Phillies (2015), and Miami Marlins (2016–) pitcher, type 1. Jackie Robinson, Brooklyn Dodgers (1947–1956), type 2, deceased (1972 at age 53). Bill Gullickson, Montreal Expos (1979–1994), type 1 Adam Duvall, San Francisco Giants (2014), Cincinnati Reds (2015–2018), Atlanta Braves (2018–2020), Miami Marlins (2021), Atlanta Braves (2021–2022), Boston Red Sox (2023), Atlanta Braves (2024–present), 2016 all star, type 1 Garrett Mitchell, Milwaukee Brewers (2020-), type 1 James "Catfish" Hunter, Kansas City/Oakland Athletics (1965-1974) and New York Yankees (1975-1979) pitcher, type 1, deceased (1999 at age 53 of ALS) Dave Hollins, multiple teams (1990–2002), 1993 all-star, type 1 Mason Miller, Oakland Athletics (2023-2025) and San Diego Padres (2025-present), type 1 Jordan Hicks, St. Louis Cardinals (2018-2023), Toronto Blue Jays (2023), San Francisco Giants (2024-2025), Boston Red Sox (2025), Chicago White Sox (2026-Present), type 1
Basketball Lauren Cox, WNBA power forward (2020–present), type 1. Chris Dudley, National Basketball Association center (1988–2001), politician, type 1. Gary Forbes, National Basketball Association small forward (2010–present), type 1. Adam Morrison, National Basketball Association small forward (2006–2010), type 1. Alper Saruhan, Turkish Basketball Super League small forward (2007–present), type 1.
Cricket Wasim Akram, Pakistani bowler (104 Tests, 356 ODIs, 1984–2003), type 1. Craig Cumming, New Zealand batsman (11 Tests, 2005–2008), type 1. Sophie Devine, New Zealand all-rounder (159 ODIs, active), type 1. Jess Kerr, New Zealand bowler (54 ODI's active), type 1. Hayley Matthews, West Indian all-rounder (105 ODI's, active), type 1. John McLaren, Australian batsman (1 Test, 1912), died of diabetes aged 34. Craig McMillan, New Zealand batsman (55 Tests, 1997–2005), type 1. Dirk Wellham, Australian batsman (6 Tests, 1981–1987), type 1.
Cycling Mandy Marquardt (United States) Mateusz Rudyk (Poland) Javier Mejías (Spain), Andrea Peron (Italy) Martijn Verschoor (Netherlands) Team Novo Nordisk (International)
Field Hockey Adam Imer, Brazil, type 1 Tegan Fourie, South Africa, type 1 Timur Oruz, Germany, type 1 Tim Atkins, Scotland, type 1
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