The Philippine Star October 9, 2022 | 12:00am MANILA, Philippines — Chloe Marie Mercado battled back from a blowout first-set loss with a big escape in the second then wore down Kaye Mustaza to carve out a 2-6, 7-6 (12-10), 5-2(ret.) victory and reach the finals of the PCA Open Juniors Tennis Championships at the PCA courts in Plaza Dilao last Friday. The third-ranked Mercado, a rising 14-year-old find from Angat, Bulacan, came into the semis brimming with confidence following a 6-0, 6-0 rout of Ana Sonza but yielded to Mustaza’s superb all-around game in the early going of their Final Four fa…