Germany's defender Schulz scores winner on debut to sink Peru
The Germans are looking to get back on the road to success after crashing out of this year's World Cup in the group stage, their earliest exit from the tournament in 80 years.
Julian Brandt, another of Loew's changes, paid him back with a superb chip in the 25th minute to draw the hosts level.
After the break Jefferson Farfan and Timo Werner missed identical chances each for Peru and Germany, shooting over the bar after quick breaks.
With the pace had dropped considerably, Schulz grabbed his chance with a shot from 15 meters that slipped under goalkeeper Pedro Gallese and into the net.