Hughes lost his life in November last year after being struck on the back of his head by a Sean Abott bouncer during a domestic match at the Sydney Cricket Ground.
The tragedy left the Australian team distraught and even forced a rescheduling of the ongoing Test series against India. Emotions will once again weigh heavy when the team competes at this ground from January 6.
"We've only really come together just now, so I'm sure we will (speak as a group) over the next couple of days, especially the guys who were on the field at that moment," he added.
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Australia have already won the four-match series after taking a 2-0 lead.
Another thought which has been dominating Watson's psyche is his relatively poor showing in the series so far, especially with the bat.
"So far in this series I've been very disappointed with my output. I've been working very hard on my game, to be able to put all the pieces together after breaking it down in the off-season," he said.