The Napoli star suffered the injury in the 11th minute of the game at AT&T Stadium in Arlington, Texas, after getting tangled up with Alvin Jones and falling onto the knee of Trinidad keeper Marvin Phillip
Lozano laid on the pitch and was immediately attended to by medical staff, who placed a neck brace on the player. He also suffered a deep gash over his eye.
He first appeared motionless but later appeared to be conscious and was seen moving around his arms. He was then carted off the field on the stretcher and taken to a local hospital to undergo concussion tests.
LA Galaxy player Efrain Alvarez came on as Lozano’s substitute.