Mexico maintained its perfect record in World Cup qualifying with a straightforward 2-0 victory over Costa Rica in San Jose on Saturday night.
Carlos Salcido volleyed home the opener two minutes before the interval after being set up by Javier Hernandez, and Jesus Zavala converted a corner to double the Mexicans' advantage seven minutes into the second half.
"It's always very complicated to play in San Jose, but we did it well and we could even have won by a bigger margin," Mexico coach Jose Manuel De La Torre said. "We have to think and plan every game like it was our last. We have not achieved our main target yet."
In the pool's other game, El Salvador could only manage a 2-2 home draw against Guyana. Isidro Gutierrez and Osael Romero netted the goals for the hosts, with Treyon Bobb twice on target for the visitors.
Mexico's win moved it to the brink of clinching a place in the final qualifying round. El Tri advanced to nine points -- five ahead Costa Rica and eight more than the Salvadorians.
On Tuesday, Mexico face Costa Rica and Guyana will host El Salvador.
In Group C in Toronto, Canada beat Panama 1-0 thanks to a 77th-minute strike by veteran Dwayne De Rosario -- and overtook the Canaleros at the group summit.
Stephen Hart's Canadians progressed to seven points -- one more than Panama -- ahead of Tuesday's return clash between the nations.
In the other pool match, goals from Jerry Bengston, Victor Bernardez and Marvin Chavez saw Honduras stroll to a 3-0 win over Cuba in Havana. The teams will meet again in San Pedro Sula on Tuesday.
Information from Press Association was used in this report.