Yuen's appointment goes effective immediately and she will report to Wunderman Thompson Hong Kong's managing director Matthew Parry.
Marketers share the trends they have their eyes on for the upcoming year and their biggest boo-boo in 2019.
The partnership will see Cigna launch fan activations and hospitality programmes in tournament host cities around the world as part of a sponsorship campaign.
Wong was previously with Celcom Axiata for more than three years, last helming the role of head of digital and consumer brands.
He will be reporting to Aqilliz CEO Gowthaman Ragothaman, who left his global client lead position at WPP earlier in July.
Meanwhile, Facebook dropped out of the top 10 ranking this year, sliding five spots to 14th place.