Olmin Leyba – The Philippine Star November 8, 2021 | 12:00am MANILA, Philippines — Coach Mau Belen is ready for the challenge as she spearheads TNT’s campaign in the coming PBA 3×3 and makes history as the first female mentor in Asia’s first play-for-pay league. “I’m super excited, humbled and honored,” Belen told The STAR yesterday. Belen, 29, first joined the Tropang Giga early this year as part of coach Chot Reyes’ staff in the centerpiece 5-on-5 play. She was primarily tasked with video coordination, scouting reports and stats in Reyes’ think tank. Now, she assumes the bigger task of coach…