Australia paceman Mitchell Starc is being monitored by medical staff after being hit by a ball just above his knee during training ahead of their T20 World Cup match against Sri Lanka, the team said on Thursday.
Left-armer Starc was struck by a return ball when bowling at practice earlier this week but he trained on Wednesday.
He had not been ruled out of the Sri Lanka game, which starts at 6:00 pm local time (1400 GMT) in Dubai, a team spokesman said.
Video posted in Australian media on Thursday showed Starc grimacing and hobbling away from a net session.
If Starc proves unfit to play, Australia have Kane Richardson in reserve should selectors opt to stick with pace or Ashton Agar if they decide to pick a second specialist spinner.
Starc, one of cricket's premier white-ball quicks, took two wickets in Australia's opening win over South Africa on Saturday.
Aaron Finch-captained Australia are bidding for their first T20 World Cup title.
Teenager Gukesh Dommaraju of India became the youngest chess world champion by beating defending champion Ding Liren of China on Thursday in a dramatic turn of events in the last game of a 14-game match in Singapore.
Saudi Arabia will host the FIFA World Cup in 2034 while the 2030 edition will be held in Spain, Portugal and Morocco, with one-off matches in three South American countries.
FIFA is set to confirm the hosts of the 2030 and 2034 men's World Cups on Wednesday, with a three-continent, six-nation bid led by Morocco, Spain and Portugal to be awarded the former and the latter going to Saudi Arabia.
Following arguably the most dominant year of golf since Tiger Woods was in his prime, Scottie Scheffler received the PGA Tour Player of the Year award on Tuesday night.
European Ryder Cup stars Robert MacIntyre and Tyrrell Hatton, and Major winner Adam Scott are the latest stars to confirm their return to the Hero Dubai Desert Classic, while PGA TOUR winner Akshay Bhatia will make his debut at the Emirates Golf Club from January 16-19.