oldmanfan
Legend
Here's how I saw it
First set
Both played amazing, game was close. Towards end of first set, Osaka got bit annoyed at all the balls coming back and really lost her calm. Hsieh stayed calmer and won the set.
Second set
Osaka frustrated and quickly down 0-3. Reverted from her normal game and tried something different, gave into Hsieh's game.
Towards middle she somehow re-figured a way to come back which is most impressive then got momentum to win.
Third
Momentum carries over
I tuned in when Naomi-chan was serving at 3-4 set one. Then saw her tripping over herself when serving for set1 at 5-4 all the way til set2 1-4 (she almost went two breaks down iirc).