Philippine president is facing pressure over what critics say is an increasingly close relationship with China.
Philippine President Rodrigo Duterte will arrive in Beijing on Wednesday, in the run-up to talks with Chinese leader Xi Jinping.
And it could be a tense meeting for China and the Philippines.
Duterte says he is planning to raise their rival claims to territory in the South China Sea.
Al Jazeera’s Scott Heidler reports from Beijing.