The 18-year-old striker has joined on loan from Sunderland until the end of the season to provide cover for Heidar Helguson, Will Hoskins and Danny Graham in attack.
Arsenal loanee Henri Lansbury will have a late fitness check on the hip injury which has kept him out of the last two games.
Skipper Jay DeMerit returned from a back injury against Sheffield Wednesday in midweek and came through unscathed.
Midfielder Ross Jenkins managed 73 minutes at Hillsborough despite an ankle problem and should be available again.
The Hornets have registered just one win in their last eight games and are hovering nervously just three points above the relegation zone.