The 25-year-old striker arrived in Manchester with Al Hilal president Prince Mohammed Bin Faisal, with Sven-Goran Eriksson and his City coaching staff preparing to take a closer look at the player.
"I'm now in England after I got an invitation letter from Manchester City," said Al Qahtani.
"I'm here with Al Hilal president Prince Mohammed bin Faisal and my agent Turki Al Mukairin.
"I'm glad to train with such a good club in England and I will try my best to prove that Saudi players are good players."