DALLAS -- Mexico defenders Nestor Araujo and Carlos Salcedo face nervous waits to find out the extent of the injuries picked up in Tuesday's 1-0 loss to Croatia in AT&T Stadium, with the World Cup just 78 days away.
Santos Laguna center-back Araujo left the field in the 17th minute and was taken to hospital with an injury to his left knee and the Mexican federation confirmed in the early hours of Wednesday that he has an injury to the meniscus, as well as medial collateral ligament damage.
"Araujo will travel to Mexico tomorrow where the meniscus issue will be assessed again and, after the tests, the recovery program will be determined," read a statement from the federation.
Eintracht Frankfurt's Salcedo was taken off in the 68th minute with a fractured left collarbone, confirmed the federation, and will "probably" require surgery.
"The doctor asks for prudence and to wait for a more complete medical examination to define which course (of action) to take, but unfortunately for both of them, their injuries seemed to be serious and we're deeply sorry for them," said Mexico coach Juan Carlos Osorio after the game in a news conference.
The initial concern surrounding Araujo's injury centered around whether it could be an ACL tear, although that had been discounted.
Those weren't the two worries during an international window in which Mexico has been plagued by injuries.
Osorio also confirmed that Porto's Diego Reyes -- Araujo's replacement -- was brought off at half-time because of hamstring complaint, while his club team-mate Jesus "Tecatito" Corona wasn't involved in the game because of a right ankle knock.
Mexico's other Porto player, Hector Herrera, was sent back to Portugal last Sunday following fitness tests, while Giovani dos Santos, Jonathan dos Santos, Jurgen Damm and Javier Aquino all also missed out on camp because of injury.