Collison and Ambrose likely to feature against Swansea
The duo are training with Town while they look for a new club.
“The plan is to play Jack and Darren in the U21s against Swansea,” Town boss Mick McCarthy told the Club website.
“I told them both when the came in, it was with no commitment from them or from me.
“They are both very talented players. For different reasons they are here. Jack has had some injuries. Darren was at Birmingham and then went to Greece.
“They have come in just to train. We are helping them out. They are helping us out as well. They are good players and have enhanced training.
“They are just getting fit though and we will see where it goes.”