Two of the region’s rising stars could be on a collision course after Filipino sensation Alexandra Eala and Chinese teenage starlet Sun Xinran were picked on the same side of the Prudential Hong Kong Tennis Open draw on Saturday. Eala will take on Alycia Parks in the first round, while Sun, who is set to play in only her second WTA250 event in as many weeks, has Czech player Tereza Valentova in her way. The 46-year-old seven-time grand slam champion Venus Williams will play compatriot Mary...