Inquirer.net. Second-seeded Alex Eala battles fourth seed Maria Sakkari in the Hong Kong Open semifinals. SCHEDULE: Alex Eala at Hong Kong Open November 7, Saturday – Center Court 4:00 p.m. MANILA, Philippines, Less than 24 hours after surviving a tough test, Alex Eala faces another stiff challenge against Greek former World No. 3 Maria Sakkari in the Hong Kong Open semifinals.