Izzy is missing presumed poorly leg as he has been for most of the season. Dunno about the other two.
Izzy, Jackson and Fryers were all in the video posted by Barnsley FC's Youtube yesterday showing highlights of the training session so I would assume those 3 are very close if not available. No idea on Pinnock, we may find out more about that and the others after this mornings press conference.
For all the negativity from the last week, there are 4 potentially influential players there to strengthen the next 3 months. Not all doom and gloom chaps