In this edition of #MattersofFact, a maritime law expert expresses doubts over President Rodrigo Duterte’s promise to raise Manila’s arbitral victory over Beijing in the South China Sea dispute during his meeting with Chinese president Xi Jinping this week. Jay Batongbacal, director of the University of the Philippines’ Institute for Maritime Affairs and Law of the Sea, says while China cannot ignore the ruling, the Philippines has lost some of its credibility with how it has handled the legal win. Batongbacal also weighs in on the increased presence of Chinese vessels spotted in Philippine waters.