Leap Defender Aerial Play Hero

References

Sources and Further Reading

  1. Cox, Andrew, The Rise and Fall of the Golden Goal: How It Defined Tournaments and Created Legends. These Football Times, 5 December 2019
  2. Bangsbo, J., Mohr, M., & Krustrup, P., Physical and metabolic demands of training and match-play in the elite football player. Journal of Sports Sciences, 24(7), 665–674., 2006
  3. Harper, David J., et al, Practitioners’ Perceptions of the Soccer Extra-Time Period: Implications for Future Research. PLOS ONE, vol. 11, no. 7, 2016, e0157687., 2016
  4. Nédélec, Mathieu, et al, Recovery in Soccer: Part II—Recovery Strategies. Sports Medicine, vol. 43, no. 1, pp. 9–22., 16 November 2012
  5. Ekstrand, Jan, et al, Lessons Learned from Two Decades of Injury Surveillance in Elite Football. Aspetar Sports Medicine Journal, vol. 8, 27 March 2019
  6. “Stats by Age.” Messi vs Ronaldo. Messi vs Ronaldo App.
  7. Lamine Yamal Reaches 100 Appearances for FC Barcelona. FC Barcelona, 30 April 2025
  8. Transfermarkt, Federico Valverde — Performance Data 2024–25. Transfermarkt, 3 November 2025
  9. Di Salvo, V., et al, Performance characteristics according to playing position in elite soccer. International Journal of Sports Medicine, vol. 28, no. 3, pp. 222–227., 2007
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  1. Baxter, Kevin, Rodri Reveals Players Are Close to a Strike over Increase in Matches. Sports Illustrated, 3 October 2024
  2. Jackson, Jamie, Guardiola warns Manchester City’s injury-prone players could be sold. The Guardian, 22 February 2025
  3. France Star Mbappé Calls for Players to Get More Time Off. RFI, 4 September 2025
  4. The Always-On Game: Football Calendar Burnout. The Football Week, 18 July 2025
  5. The Price of Non-Stop Play: How Football’s Schedule Risks Players and Clubs. Football Benchmark, 5 December 2024
  6. Williams, Callum, FIFA Brings Arsène Wenger on Board to Lead New Player Welfare Initiative. Insider Sport, 31 October 2024
  7. Baldi, Ryan, Copa América scrapped extra-time. Should other knockout tournaments? The Guardian, 12 July 2024
  8. UEFA and FIFPRO Urge Action on Player Welfare. Reuters, 16 September 2025
  9. Christien Pheby, UEFA Considers Scrapping Extra Time from Knockout Games. YouGov, 19 February 2025
  10. Ajit Niranjan, Footballers at ‘Very High Risk of Extreme Heat Stress’ During World Cup 2026. The Guardian, 29 November 2024
  11. George Timms, Extreme Heat Is Testing FIFA’s Ability To Protect 2026 World Cup Athletes. Time, 19 July 2025
  1. Klopp, Jürgen, Every word of Jurgen Klopp’s brilliant dig at TNT Sports and fixture congestion. This Is Anfield, 1 May 2024
  2. Miller, Clark, He Always Puts It to the Right. Orion Books Ltd, 1999
  3. Lyttleton, Ben, Twelve Yards: The Art and Psychology of the Perfect Penalty. Bantam Press, 2014
  4. Roper, Matt, World Cup 2018: Colombia players who missed penalties against England receive death threats from angry fans. Independent, 5 July 2018
  5. Figgs, Jack, Chelsea ace Tammy Abraham receives death threats and is racially abused after penalty shootout miss against Liverpool. The Sun, 16 August 2019
  6. Racist abuse of England players Marcus Rashford, Jadon Sancho & Bukayo Saka ‘unforgivable.’. BBC, 12 July 2021
  7. Whistleblower Staff, How Micro-Betting Supercharged Abuse of Athletes. The Washington Post, 14 June 2025
  8. Athlon Sports Staff, Gamblers’ Rage Unleashes Vile Threats on Soccer Stars. Athlon Sports, 2025
  9. Palacios-Huerta, Ignacio, Beautiful Game Theory: How Soccer Can Help Economics. Princeton University Press, 2014
  10. Kiel Institute for the World Economy, Analysis of 7,000 Penalty Shootouts. Kiel Policy Brief, 2025
  1. Field, Adam, The Extra-Time Period of Soccer: Implications for Performance, Fatigue, Recovery, and Injury. Science of Multi-Speed, 2025
  2. Harper, Liam D., et al., The Evolution of Match Performance Parameters Associated with Muscle Glycogen Depletion and Injury Risk in Professional Soccer. Journal of Sport and Health Science, vol. 8, no. 2, 2019, pp. 115–121.
  3. Ekstrand, Jan, et al., Epidemiology of Muscle Injuries in Professional Football (Soccer). British Journal of Sports Medicine, vol. 50, no. 9, 2016, pp. 559–562. doi:10.1136/bjsports-2015-095371.
  4. Ekstrand, Jan, and Håkan Bengtsson, UEFA Elite Club Injury Study: Twenty-First Annual Report, Season 2022/23. UEFA Medical Committee, 2023
  5. Edwards, A.M., and N.A. Clark, Thermoregulatory observations in soccer match play: professional and recreational level applications using an intestinal pill system to measure core temperature. British Journal of Sports Medicine, vol. 40, pp. 133–138., 2006
  6. Harper, Liam D., et al., Practitioners’ Perceptions of the Soccer Extra-Time Period: Implications for Future Research. PLOS ONE, vol. 11, no. 7, 2016, e0157687. Public Library of Science
  7. Field, Adam, et al., The Demands of the Extra-Time Period of Soccer: A Systematic Review. Journal of Sport and Health Science, vol. 11, no. 3, 2022, pp. 403–414. Elsevier
  1. Dupont, G., Akakpo, K., & Berthoin, S., The effect of in-season, high-intensity interval training in soccer players. J Strength Cond Res, 18(3), 584–589., 2004
  2. Nédélec, M., McCall, A., Carling, C., Legall, F., Berthoin, S., & Dupont, G., Recovery in soccer: part I – post-match fatigue and time course of recovery. Sports Medicine, 42(12), 997–1015., 2012
  3. Apesteguia, Jose, and Ignacio Palacios-Huerta, Psychological Pressure in Competitive Environments: Evidence from a Randomized Natural Experiment. American Economic Review, vol. 100, pp. 2548–2564., 2010
  4. Tynan, Gordon, Donadoni ‘Close to Dismissal’ After Italy Exit. The Independent, 25 June 2008
  5. Molango, Maheta, Relentless Football Fixture List is Damaging the Physical and Mental Health of Players. Professional Footballers’ Association, 31 December 2022
  6. Simon Burnton, Why not everyone remembers the 1966 World Cup as fondly as England. The Guardian, 24 July 2016
  7. Haugen, Thomas, Øyvind Tønnessen, and Svein Ø. Seiler, The Role and Development of Sprinting Speed in Soccer. International Journal of Sports Physiology and Performance, vol. 9, no. 3, 2014, pp. 432–438.
  1. Wallace, J. L., and J. R. Norton, Evolution of World Cup Soccer Final Games 1966–2010: Game Structure, Speed and Play Patterns. Journal of Science and Medicine in Sport, vol. 17, no. 2, 2014, pp. 223–228.
  2. UEFA. Elite Club Injury Study: 2019/20 Season Report. Union of European Football Associations, 2020
  3. Jenkins, Simon, How to improve the World Cup? Scrap penalties and move the goalposts. The Guardian, 4 July 2018
  4. Soccer: Blatter against shootout in final. The New York Times, 27 September 2006
  5. Slater, Steve, Penalties will put World Cup players on the spot. Reuters, 27 May 2010
  6. Wyatt, Chris, The art of taking a penalty. BBC Sport, 5 June 2008
  7. Crowder, Paul, and John Dower, Once in a Lifetime: The Extraordinary Story of The New York Cosmos. Passion Pictures/Cactus Three/ESPN Original Entertainment/Greene Street Films, 2006
  8. Baxter, Kevin, In World Cup, penalty shootouts kick up controversy. The Los Angeles Times, 9 July 2010
  9. Plenderleith, Ian, Rock ‘n’ Roll Soccer: The Short Life and Fast Times of the North American Soccer League. Icon Books, 2014
  1. Shilton, Peter, I wanted to be a goalkeeper from the moment someone put two coats down in the playground. Men’s Health Forum, 8 June 2006
  2. There Must Be A Better Way Than Penalty-kick System. The Philadelphia Inquirer, 24 June 1986
  3. Wilner, Barry, Argentina’s Maradona too much for England. The Deseret News, 23 June 1986
  4. The joy of six: inspired tactical switches. The Guardian, 10 July 2007
  5. Byatt, A.S, Lie back and think of Europe. The Observer, 29 June 2008
  6. Herman Miller, ‘Wayne should not be vilified.’ The Guardian, 2 July 2006
  7. Thomsen, Ian, For Soccer to Win American Hearts, It Must Create Some Heroes. The New York Times, 20 July 1994
  8. Atkins, Mike, Father of shoot-outs puts Swiss, English on spot. The Times of Malta, 6 July 2006
  9. McCrum, Robert, The Penalty Kick: The Story of a Gamechanger. Notting Hill Editions, 5 November 2024
  10. Garber, Don, Shootout banned; TV lineup changed. CNN, 18 November 1999
  11. Jones, Phil, and Oxley, Sonia, When football turned to penalties to end ‘cruel’ system. BBC, 28 March 2026