Germany's World Cup squad got some motivational help from explorer and adventurer Mike Horn on Tuesday during a sailing outing near their camp on Brazil's Atlantic coast. (More images here)
Horn talked about his exploits, such as the solo circumnavigation of the Arctic Circle and a North Pole expedition. (Also read: Carnival or chaos? FIFA World Cup poised for kick-off)
Germany captain Philipp Lahm was impressed, saying it was "incredible what the human body can achieve."
Lahm said the presentation by the South African-born Swiss explorer showed that "we must be well prepared, and have to respect the opponent."