A momentary positional lapse by one of Liga MX's star goalkeepers was enough for America to sink the Bicampeones Leon at Nou Camp stadium. Oswaldo Martinez's first half brace (19', 38') was enough to bag the three points, with Yarbrough's positional lapse contributing to Martinez's second goal. Mauro Boselli (84') grabbed the only goal for La Fiera, whose title defense got off to a shaky start.
Oswaldo Martinez opened up the scoring for Club America in the 19th minute, finishing off a one-two with Oribe Peralta, after the buildup was accelerated by a well-timed diagonal ball by Paul Aguilar, and some good 1v1 work by "El Cepillo" in the middle of the one-two to evade a defender and free up the Paraquayan midfielder. Leon thought they had equalized two minutes later, but Mauro Boselli was deemed to be offside. It would be a call that would prove to change the direction of the match.
La Fiera continued to have most of the possession, and play most of the game in the America defensive half. But in the 38th minute, the Azulcremas doubled their lead off of a long shot by Oswaldo Martinez. Leon keeper William Yarbrough caught the ball, but brought it down behind the line, doubling America's advantage with the keeper's positional lapse.
Moises Munoz was called into action four minutes later to make a diving save on a shot from Mauro Boselli, who evaded a defender to create the chance at the top of the 18. Carlos 'Gullit' Pena continued to orchestrate the attack well for the home side but nothing came of it.
Once the second half started, America gained most of the possession, and both teams had their share of early chances. The best of those chances came in the 61st minute, when Raul Jimenez was played in 1v1 against William Yarbrough. Jimenez made a darting run towards the center and fired a curling shot. But Yarbrough put a palm to the shot to put it over the bar and end the threat.
America would rue the chance to extend their lead, as "Topo" Valenzuela brought down Yamilson Rivera inside the penalty area. After the referee had delayed the penalty kick for players encroaching the area, Mauro Boselli's first attempt would be saved by Moises Munoz, who guessed right. But in the chaos, Pablo Aguilar brought down another Leon player inside the 18 (this time in the 84th minute) to give Boselli another chance. Leon's Argentine striker converted the penalty this time around to bring the home side within one goal. But it would be the closest La Fiera would get.
Antonio "Turco" Mohamed curiously subbed out left back Miguel Layun at the half, but it was unclear at the time if it was due to an injury or if it was tactical. If the Mexico left back picked up a knock, he could miss America's home opener against Tijuana on Saturday, July 26. Leon, despite playing with their trademark fluidity, did not get the result they had hoped for. La Fiera will travel to the Estadio Universitario the same day to see if they can right the ship against a revamped Tigres side.