Melbourne - Australian all-rounder Shane Watson was back training on Wednesday, a day after he was hit on the head by a short-pitched delivery in training for the Boxing Day Test against India.
Watson, who was dazed when struck on the helmet by the bouncer from James Pattinson, faced a bowling machine on Wednesday while having a hit in the indoor nets to prepare for the start of Friday's Test.
National selector Mark Waugh said Watson felt unwell after he returned to the team hotel on Wednesday, and there were fears he has sustained a concussion. Pattinson looked upset after the incident and left training.
On November 25, Australia team-mate Phillip Hughes was hit by a bouncer during a domestic match in Sydney, and died in hospital two days later.