By Fion Khan / Staff writer US Secretary of State Marco Rubio is expected to visit China with US President Donald Trump later this month after appearing to show little interest in previous invitations from Beijing, the South China Morning Post reported today. Rubio, the first sitting US secretary of state to be sanctioned by China, had been invited to visit but had not been "receptive" until recently, the Hong Kong-based newspaper said, citing anonymous sources. Rubio's attendance could smooth over some of the issues surrounding Trump's visit to China, the report said, adding that frustration has been mounting in Beijing because of the lack of preparation for the trip. China imposed sanctions on Rubio in 2020 when he was still a senator — once in retaliation for US san...