All week at the Shanghai Rolex Masters, Novak Djokovic signed off after each victory by writing 'love' in Chinese characters on the courtside camera.
The Serb went a step further on Sunday after he beat Juan Martin del Potro 6-1, 3-6, 7-6 (7-3) to retain his title, giving part of his thank-you speech on court in Mandarin.
It is not hard to understand Djokovic's affection for China.
After all, his latest title at the Qizhong Tennis Centre is the seventh trophy he has lifted in the country since 2008, and comes just a week after he beat world No. 1 Rafael Nadal to win the China Open in Beijing last Sunday. His winning streak in the country now stands at 20 matches.
Said the world No. 2 on Sunday: "I think either one of us could have taken the title. I just managed to hold my emotions and I managed to believe in the victory enough in the end to play the right shots at the right time."
But he did not always look to have the match - or his emotions - under control yesterday, somewhat of a theme for the six-time Grand Slam champion this past week.
He slipped into a slump and played - literally - a wobbly second set, losing his balance several times after hitting a shot.
He even kicked the courtside clock in frustration yesterday after squandering two break points in the sixth game of the deciding set.
Said Djokovic: "All the way up to the last point, I didn't know if I was going to win the match."
And despite saving two match points, del Potro saw his pre-match fears come to pass.