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Athletes provided informed consent. All athletes included in the present study were engaged in regular blood biomarker screening and represented their club or country at the highest level (e.g., professional or elite level).","order":2,"name":"Ethics","label":"Ethics Approval and Consent","group":{"name":"EthicsHeading","label":"Declarations"}},{"value":"The relevant data used in longitudinal monitoring of elite athletes cannot be shared publicly because they contain potentially sensitive information and are protected under the EU General Data Protection Regulation. Anonymised data are available upon request for researchers who meet the criteria for access to confidential data.","order":3,"name":"Ethics","label":"Availability of Data and Materials","group":{"name":"EthicsHeading","label":"Declarations"}},{"value":"All authors conceptualised the study. The primary researcher (TVvK) completed the literature review, data analyses and write-up. NL and CP coordinated the project, including data collection, and were major contributors in writing the manuscript. All authors read and approved the final manuscript.","order":4,"name":"Ethics","label":"Author Contributions","group":{"name":"EthicsHeading","label":"Declarations"}}]}}