El Salvador had the better of the run of play at the start, but a set piece gave Mexico the early lead. In the 8th minute, Hedgardo Marín scored his first goal for El Tri when he headed home a free kick from Elías Hernández at the back post.
The 1-0 lead lasted just two minutes, however, before Nelson Bonilla leveled the score with his low shot from inside the box.
El Salvador then had a chance to take the lead in the 27th minute, when miscommunication in the back allowed Gersen Mayen to pick off Jesús Corona’s attempt at distribution, but his chip came down on the roof of the net.
Minutes later, Mexico made it 2-1 when Elías Hernández found himself unmarked at the far post to volley home a cross from Jesús Gallardo.
Mexico made two halftime substitutions, withdrawing Luis Reyes and Jorge Hernández, who had both picked up cards in the first half. Reyes’ replacement, Orbelín Pineda, scored within ten minutes to put El Tri firmly in control of the game.
In the 55th minute, Elías Hernández got free on the right and sent in a cross; Benji Villalobos tried to get a hand to it, but it got past the goalkeeper and Pineda was there at the far post to bundle the ball in. 3-1.
Villalobos did well to keep Mexico from running the score up further, although the keeper was forced to leave the game in the 76th minute as he was unable to shake off an apparent knee injury.
With the 3-1 win, Mexico reaches three points while El Salvador still has zero.
Group C will be back in action on Thursday, when El Salvador faces Curaçao and Mexico takes on Jamaica.
Group Standings – Group C
Mexico: José de Jesús Corona, Hedgardo Marín, Hugo Ayala, Luis Reyes (Orbelín Pineda 45′), Edson Álvarez, Jorge Hernández (Jesús Molina 45′), Rodolfo Pizarro, Jesús Dueñas, Ángel Sepúlveda (Erick Gutiérrez 70′), Elías Hernández, Jesús Gallardo.
El Salvador: Benji Villalobos (Derby Carrillo 76′), Iván Mancia, Henry Romero, Alexander Larín, Bryan Tamacas, Narciso Orellana, Darwin Cerén, Andrés Flores (Dennis Pineda 59′), Gerson Mayen (Óscar Cerén 65′), Rodolfo Zelaya, Nelson Bonilla.