Footballers are concerned the Premier League's coronavirus protocols distributed will leave them at risk of injury.
Top-flight clubs were provided with a seven-page document last week outlining hygiene guidelines aimed at protecting players and staff from Covid-19.
The dossier has failed to appease a number of Premier League doctors, who are fearful that, despite the measures, employees will still be under significant risk of infection.
One of the measures states that 'no manual therapy of players by staff (including soft tissue and massage) prior to training is conducted unless it is absolute essential and approved by the Club Doctor in advance'.