Porto's Mexican midfielder Héctor Herrera celebrates after scoring goal during the Premier League 2015/16 match between FC Porto and CD Nacional, at Dragão Stadium in Porto on April 17, 2016. (Photo by Pedro Lopes / DPI / NurPhoto via Getty Images)
Porto's Mexican midfielder Héctor Herrera celebrates after scoring goal during the Premier League 2015/16 match between FC Porto and CD Nacional, at Dragão Stadium in Porto on April 17, 2016. (Photo by Pedro Lopes / DPI / NurPhoto via Getty Images)