The all-rounder has missed his nation's recent encounters against Zimbabwe and Pakistan because of ankle and calf complaints.
However, the 33-year-old has confirmed that he should be fit enough to turn out for his club side Sutherland in a T20 clash against St George on Sunday.
"If everything goes well this week I should be available to play a game on Sunday for my club team. I'm very excited to be back playing. It's the biggest break I've had in three or four years so I'm really itching to get back," the Sydney Herald has quoted Watson as saying.
Watson has been out of action since playing in the Indian Premier League back in May.