West Ham United upped the intensity of their preparations for the Premier League Asia Trophy semi-final with Manchester City at an oven-like Nanjing Olympic Sports Park on Monday.
The Hammers hit the training pitch at 11am, by which time the temperature and humidity had hit 85F and 75% respectively.
The demanding conditions will have done nothing to harm Manuel Pellegrini's squad, who enjoyed a technical session which ended in an eleven-a-side game featuring goals from Chicharito and Felipe Anderson.
Now two weeks into their preseason schedule, fitness levels and sharpness are both on the rise ahead of Wednesday evening's meeting with Pep Guardiola's treble winners, who were still in England on Monday morning after their flight to China was reportedly twice delayed.
Pellegrini's players enjoyed an afternoon off, with captain Mark Noble leading a full squad excursion downtown, where they met supporters, shopped and took in the local culture in one of China's oldest and most-historic cities.