Watt, who turned 20 on Monday, has missed the last three games due to a hamstring problem but rejoined the squad for full training this week and is in contention.
Right-back Paul Connolly is still struggling with a hamstring strain after missing last week's win at Bristol City, so recent loan signing Eric Lichaj will continue after making his debut at the weekend.
Manager Simon Grayson has no new injury or suspension problems but is unlikely to make any unforced changes, so Davide Somma, Billy Paynter and Ross McCormack are expected to start on the substitutes' bench again.
Leeds, unbeaten in five league games, are chasing a third straight win in a bid to leapfrog Norwich in the top six.
Source: PA
