I see we'll be playing the away leg at altitude (Lima 1550 metres). Best Anfony takes the lads into camp up the summit of Mt Holdsworth after we hold them to the draw at sea level.
The top bits of the Lima district are at 1550 metres. The National stadium is at or near to sea level (Lima is a coastal town that expands into the Andes to it's East). Unless they play somewhere other than Lima the game is not at altitude.