MIDFIELDER Liam Trotter is a doubt for Millwall's FA Cup semi-final against Wigan on Saturday after picking up a knee injury in training.
Trotter missed the Lions' 2-1 defeat to Sheffield Wednesday on Tuesday and Jackett admits he could also be without the 24-year-old for the Wembley clash.
Jackett said: "He has a knee injury – we're not quite sure but there's some swelling and tightness. He is 50-50. We'll see on either Thursday or Friday, it will be as late as that, whether he recovers."
Jackett was pleased to see James Henry come through his injury return unscathed against the Owls but suggested it may be too soon to give the winger 90 minutes against the Latics.
"I would have to talk to him," he said. "I am presuming he is fine and there's been no reaction to his injury. He certainly looked okay and played well. I hope he's fine for Saturday.
"Whether fitness-wise it would be right to start him, we'll see. He's been out for four or five weeks so I will go on what I see in training over the next few days and how he feels."