The Premier League and EFL are taking legal advice about whether clubs can force players to have the Covid-19 vaccine as a condition of employment.
As Sportsmail revealed last month, several clubs are exploring the idea of inserting vaccine clauses in contracts amid concerns about the low take-up rate of the jab, in a move that has gained the support of the leagues.
With rates varying between clubs, the Premier League and EFL want to agree a uniform approach and have asked a leading employment QC to advise on whether it is lawful for the leagues or the clubs to make vaccination a mandatory pre-condition for playing.