The Mexican Football Federation has told domestic players from Liga MX they will be dropped from the country’s World Cup squad if they fail to report for a training camp and stay with their clubs instead.

The camp, starting Wednesday, 6 May, is taking place outside Fifa’s designated international window and clashes with Liga MX play-offs in the top flight of Mexican football and Concacaf Champions Cup matches.

A deadline of 8pm local time (03:00 BST on Thursday, 7 May) has been given.

Last week, the federation (FMF) announced the 20 Liga MX players selected by coach Javier Aguirre to take part in the camp in Mexico City, with 12 players guaranteed a spot in the World Cup squad.

“All players must report to the High Performance Centre in Mexico City,” the FMF said. “On the coaching staff’s instructions, any player who fails to attend the training camp today will be excluded from the World Cup.”

Mexico, who are co-hosts of this summer’s tournament alongside the US and Canada, will announce their final squad on 1 June.

They play warm-up matches against Ghana on 22 May, Australia on 31 May and Serbia on 4 June, before starting their tournament against South Africa at Estadio Azteca on 11 June.