Nick Kyrgios could skip the rest of the Asian swing after aggravating a shoulder injury during his 7-6(5) 6-1 first round defeat by Italy's Andreas Seppi at the Zhuhai Championships on Wednesday.
Kyrgios was leading 4-1 in the first set when his shoulder started playing up, hampering his blistering serve, the most lethal weapon in his arsenal.
"There's no point for me to play if I can't really serve, because serving is my strength, my favourite shot," the Australian sixth seed, who also withdrew from last weekend's Laver Cup with the same injury, told reporters.
"So if I'm not able to serve at my best and I'm hindered, I'm probably not going to bother playing until I can get it right again.
"I was playing well in the first set, I was obviously up a break serving for the set and... I was obviously struggling a lot. I'm serving usually somewhere around the 230 km per hour(143mph) mark and I wasn't even able to crack about 180."