Olympic gold medallists in 2012 Mexico began their title defence at the Rio 2016 with a 2-2 draw against Germany at the Arena Fonte Nova Salvador on Thursday.
The young Germans had to come back twice to earn a hard fought draw with Mexico in Group C action in Salvador.
After an entertaining first half which ended goalless, 2012 hero Oribe Peralta and one of the three of the over-age players gave the U-23 El Tri the lead in the 52nd minute with a header.
Peralta headed into the top corner from a corner swung in from the left to give Mexico the advantage before Arsenal's Serge Gnarbry restored parity for the young Die Mannschaft six minutes later with a perfect side foot shot.
The Arsenal youngster who came on after just 28 minutes following a knock for Leon Goretzka, cut inside from a fine through ball from defender Niklas Sule and found the far corner of the net with the outside of his right foot.
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Rodolfo Pizarro scored what looked like the winner for the El Tri in the 62nd minute only for Matthias Ginter to salvage a point for the Germans in the 78th minute.
The 22-year-old from Borussia Dortmund got ahead of marker Jorge Torres Nilo to head past Alfredo Talavera in the Mexico goal from eight yards.
Peralta who is making his second Olympic appearance for Mexico has played seven games for the El Tri and was the third-best goalscore, at the London 2012 Olympics in London.Uncover how I make $750 weekly on Facebook using never been revealed Social Media tools.