Crewe boss Steve Davis has called for more money to be invested in checking players for heart conditions, particularly at lower levels. Fabrice Muamba remains critically ill in hospital after suffering a cardiac arrest during Bolton's FA Cup quarter-final tie at Tottenham on Saturday.
Davis told BBC Radio Stoke that many clubs cannot afford to carry out checks on their players often enough.
"At Premier League level, it should be high on their list of priorities that they regularly screen their players to see whether there's any abnormality in their heart.
"It's difficult to assess because of the amount of work that they do on the pitch.
"They're pushing their bodies to the limit and sometimes the body can react to that and, on this occasion, it has done.
"Whilst I think it (checking for heart conditions) is something that should be done, from a financial point of view, it's very difficult to do."
Crewe have developed a high reputation of producing quality players through their youth academy and Davis said every effort is made to check on the health of their young professionals.
"We try to do a screening with them when they're 16," added the Alex boss. "But those checks probably aren't regular enough because of the amount of money that they cost to have.
"Your body changes over the years and we have to monitor that.""At our level, I don't know where the money would come from," he said.
