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.
Sherfane Rutherford struck an unbeaten half-century and Gudakesh Motie produced a brilliant display of spin bowling as West Indies thumped England by 30 runs in a Twenty20 World Cup Group C encounter on Wednesday.
Australia launched their Twenty20 World Cup campaign with a commanding 67-run victory over Ireland in Colombo on Wednesday, powered by four-wicket hauls from Nathan Ellis and Adam Zampa.
Tottenham Hotspur have sacked manager Thomas Frank after eight months in charge, the Premier League club said on Wednesday, after a woeful run of results left the north London club hovering five points above the relegation zone.
South Africa survived Kagiso Rabada's final-over meltdown against Afghanistan and then a double Super Over drama before prevailing in a heart-stopping Group D match of the Twenty20 World Cup on Wednesday.
Pakistan opener Sahibzada Farhan has hit a swift half-century as the 2009 champions comfortably beat the US by 32 runs on Tuesday, clinching their second straight Group A win in the Twenty20 World Cup.