McIntosh has missed The Miller's last two games but after coming through training on Thursday morning boss Ronnie Moore's seems certain to include him in the squad for the tough test with against the Hornets if he suffers no reaction.
Meanwhile, Millers in-form striker Alan Lee looks set to miss the trip to Leicester City on November 23rd after picking up his fifth booking of the season in Rotherham's 3-1 Worthington Cup win over Wimbledon on Tuesday.
Lee faces a one game ban for his actions, assuming the caution is included in referee Steve Dunn's report.