ShareJamaica upset the odds in their Nations League quarter-final first leg with Mexico, who now need a rescue job in Monterrey.Mexico have it all to do after suffering an upset 3-2 defeat to Jamaica in the first leg of their CONCACAF Nations League quarter-final in Kingston.The Reggae Boyz found themselves 3-0 up thanks to an own goal from Jesus Gallardo, Renaldo Cephas' strike, and a penalty from Richard King.Rafael Marquez's side at least reduced the deficit through Gilberto Mora and Julian Quinones' penalty, but they must now do a rescue job in Monterrey on Tuesday.Mexico were up against it from the 27th minute when Gallardo lucklessly diverted Ronaldo Webster's corner into his own goal.Cephas doubled the lead a minute into the second half when he drove in from the left flank and drilled a right-footed effort into the bottom-right corner.King kept his cool from the penalty spot just after the hour after Gallardo was pinged for fouling Kaheim Dixon following an intervention from the VAR.Up against it, Mexico at least showed some late resolve, starting when teenager Mora coolly picked out the bottom-left corner from outside the area.Webster was then penalised for fouling Santiago Sandoval inside the penalty area, with Quinones netting from 12 yards to give Mexico a fighting chance on home soil.Marquez's troubles continue for MexicoFormer Mexico international Marquez was promoted to the top job from the assistant role after Javier Aguirre left his post following the last-16 defeat to England at the World Cup.Mexico are winless in five games since Marquez was appointed, and they badly need to find some form to book a likely semi-final with the United States – who comfortably lead Haiti 6-0 in their quarter-final tie.Marquez can at least take comfort from the fact his side had the better xG (2.05 to 1.08) and more shots on target (seven to three). If they can replicate that in the second leg, El Tri will fancy their chances of turning things around.Mora and Quinones each had four shots in total, and two on target apiece, and could be crucial in helping Mexico turn this around.The Reggae Boyz scored from all of their shots on target, and this was the first time they had scored three goals against Mexico in their history.Goalkeeper Jahmali Waite was crucial for Jamaica, making five saves in total to frustrate the visitors.Jamaica upset the odds in their Nations League quarter-final first leg with Mexico, who now need a rescue job in Monterrey.Mexico have it all to do after suffering an upset 3-2 defeat to Jamaica in the first leg of their CONCACAF Nations League quarter-final in Kingston.The Reggae Boyz found themselves 3-0 up thanks to an own goal from Jesus Gallardo, Renaldo Cephas' strike, and a penalty from Richard King.Rafael Marquez's side at least reduced the deficit through Gilberto Mora and Julian Quinones' penalty, but they must now do a rescue job in Monterrey on Tuesday.Mexico were up against it from the 27th minute when Gallardo lucklessly diverted Ronaldo Webster's corner into his own goal.Cephas doubled the lead a minute into the second half when he drove in from the left flank and drilled a right-footed effort into the bottom-right corner.King kept his cool from the penalty spot just after the hour after Gallardo was pinged for fouling Kaheim Dixon following an intervention from the VAR.Up against it, Mexico at least showed some late resolve, starting when teenager Mora coolly picked out the bottom-left corner from outside the area.Webster was then penalised for fouling Santiago Sandoval inside the penalty area, with Quinones netting from 12 yards to give Mexico a fighting chance on home soil.Marquez's troubles continue for MexicoFormer Mexico international Marquez was promoted to the top job from the assistant role after Javier Aguirre left his post following the last-16 defeat to England at the World Cup.Mexico are winless in five games since Marquez was appointed, and they badly need to find some form to book a likely semi-final with the United States – who comfortably lead Haiti 6-0 in their quarter-final tie.Marquez can at least take comfort from the fact his side had the better xG (2.05 to 1.08) and more shots on target (seven to three). If they can replicate that in the second leg, El Tri will fancy their chances of turning things around.Mora and Quinones each had four shots in total, and two on target apiece, and could be crucial in helping Mexico turn this around.The Reggae Boyz scored from all of their shots on target, and this was the first time they had scored three goals against Mexico in their history.Goalkeeper Jahmali Waite was crucial for Jamaica, making five saves in total to frustrate the visitors.