Get the latest United transfer window updates, pre-season news and analysis delivered straight to your inbox every day for free Professional footballers in England are going to be limited to 10 "higher force headers" per week during training sessions under new guidelines issued ahead of the start of the 2021/22 campaign.
The decision has been made following recent "multiple studies," as cited by BBC Sport, that were carried out into concerns about the long-term dangers of heading.
Back in 2019, a study found that professional footballers were much more likely to suffer from neurodegenerative brain disease than anyone else.
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