Kieron Dyer is in line for his second home debut for Ipswich.
Midfielder Dyer started his career in Suffolk before joining Newcastle in 1999 and returned on loan from West Ham on Friday. He started at Leeds on Saturday and will again be involved.
Captain David Norris will be missing as he completes his two-game ban but Jimmy Bullard returned from a hamstring injury at Elland Road and will keep his place.
Mark Kennedy - who can play in midfield or at left-back - will be out for several weeks with a hamstring injury so Darren O'Dea will continue at full-back.
Goalkeeper Brian Murphy has stepped up his comeback from a broken ankle after coming out of plaster but Marton Fulop will continue.
Watford will be without defender Lee Hodson for the trip to Suffolk.
The young right-back left the field on a stretcher on Saturday after he was caught by a late challenge from Sheffield United striker Darius Henderson but scans have revealed that he did not break his ankle.
He will be out for a while as he recovers from heavy bruising, however, so Adam Thompson will return to the side.
Former Hornet Henderson was sent-off for the challenge while United also had another ex-Watford player Lee Williamson dismissed for an aerial challenge on Lloyd Doyley.
Doyley escaped injury and will start but on-loan Manchester United midfielder Danny Drinkwater is still back receiving treatment at his parent club.
Midfielder Stephen McGinn is a long-term absentee with his serious knee injury as the Hornets look for three more points.