R. Akenhead and G. P. Nassis, Training load and player monitoring in high-358 level football: current practice and perceptions, International Journal of Sports 359 Physiology and Performance, vol.11, pp.587-793, 2016.

R. Bahr and I. Holme, Risk factors for sports injuries -a methodological 362 approach, British Journal of Sports Medicine, vol.37, pp.384-392, 2003.

R. Bahr, Why screening tests to predict injury do not work and probably never 365 will?: a critical review, British Journal of Sports Medicine, vol.50, pp.776-780, 2016.

P. Blanch and T. J. Gabbett, Has the athlete trained enough to return to play 368 safely? The acute:chronic workload ratio permits clinicians to quantify a 369 player's risk of subsequent injury, British Journal of Sports Medicine, vol.50, pp.471-370, 2016.

G. Borg, P. Hassmen, and M. Lagerstrom, Perceived exertion related to heart 373 rate and blood lactate during arm and leg exercise, European Journal of Applied, vol.374, 1987.

T. J. Gabbett, The development and application of an injury prediction model 414 for noncontact, soft-tissue injury in elite collision sport athletes, Journal of 415 Strength and Conditioning Research, vol.24, pp.2593-2603, 2010.

M. Hagglund, M. Walden, and J. Ekstrand, Previous injury as a risk factor for 418 injury in elite football: a prospective study over two consecutive seasons, British 419 Journal of Sports Medicine, vol.40, pp.767-772, 2006.

M. Hagglund, M. Walden, and J. Ekstrand, Risk factors for lower extremity 422 muscle injury in professional soccer, American Journal of Sports Medicine, vol.41, pp.423-327, 2013.

R. Harbour and J. Miller, A new system for grading recommendations in 426 evidence based guidelines, British Medical Journal, vol.323, pp.334-336, 2001.

B. T. Hulin, T. J. Gabbett, D. W. Lawson, P. Caputi, and J. A. Sampson, The 429 acute:chronic workload ratio predicts injury: high chronic workload may 430 decrease injury risk in elite rugby players, British Journal of Sports Medicine, vol.431, pp.231-236, 2016.

F. M. Impellizzeri, E. Rampinini, A. J. Coutts, A. Sassi, and S. M. Marcora, , 2004.

, Use of RPE-based training load in soccer, Medicine & Science in Sports &, vol.435

. Exercise, , vol.36, pp.1042-1047

A. Jaspers, M. S. Brink, S. G. Probst, W. G. Frenken, and W. F. Helsen, , 2017.

, Relationships between training load indicators and training outcomes in 439 professional soccer, Sports Medicine, vol.47, pp.533-544

C. M. Jones, P. C. Griffiths, and S. D. Mellalieu, Training load and fatigue 447 marker associations with injury and illness: A systematic review of longitudinal 448 studies, Sports Medicine, vol.47, pp.943-974, 2017.

D. Lu, K. Howle, A. Waterson, C. Duncan, and R. Duffield, Workload profiles 451 prior to injury in professional soccer players, Science and Medicine in Football, vol.452, issue.3, pp.237-243, 2017.

S. Malone, A. Owen, M. Newton, B. Mendes, K. D. Collins et al., , 2017.

, The acute:chronic workload ratio in relation to injury risk in professional soccer, Journal of Science and Medicine in Sport, vol.456, pp.561-565

A. Mccall, C. Carling, M. Nedelec, M. Davison, F. Le-gall et al., , p.459

G. , Risk factors, testing and preventative strategies for non-contact 460 injuries in professional football: current perceptions and practices of 44 teams 461 from various premier leagues, British Journal of Sports Medicine, vol.49, pp.583-589, 2014.

A. Mccall, C. Carling, D. Michael, M. Nedelec, F. Le-gall et al., , p.464

G. , Injury risk factors, screening tests and preventative strategies: a 465 systematic review of the evidence that underpins the perceptions and practices of 466 44 football (soccer) teams from various premier leagues, British Journal of 467 Sports Medicine, vol.49, pp.583-589, 2014.

T. Nilsson, A. H. Ostenberg, and M. Alricsson, Injury profile among elite male 470 youth soccer players in a Swedish first league, Journal of Exercise, p.471, 2016.

M. A. Salgueiro-da-silva and T. M. Seixas, The role of data range in linear 482 regression, The Physics Teacher, vol.55, pp.371-372, 2017.

A. E. Saw, L. C. Main, and P. B. Gastin, Monitoring the athlete training 485 response: subjective self-reported measures trump commonly used objective 486 measures: a systematic review, British Journal of Sports Medicine, vol.50, pp.281-291, 2016.

M. Van-mechelen, H. Hlobil, and H. C. Kemper, Incidence, severity, aetiology 489 and prevention of sports injuries. A review of concepts, Sports Medicine, vol.14, pp.82-490, 1992.

M. Walden, M. Hagglund, and J. Ekstrand, UEFA Champions League study: a 493 prospective study on injuries in professional football during the, 2001.

, British Journal of Sports Medicine, vol.39, pp.542-546