Town have confirmed that striker Frank Nouble missed the trip to Yeovil with a hamstring injury.
Nouble, 22, was forced off in the recent 1-0 home victory over Birmingham and felt the problem again after Saturday's long trip back from Middlesbrough.
The former England U19 international's absence means manager Mick McCarthy will be forced into at least one change of personnel, although he was planning to shuffle his pack for the visit to Huish Park in any case.
Midfielder Anthony Wordsworth was ruled out yesterday with a back problem and 17-year-old second-year scholar Teddy Bishop again travelled.