First team manager Neil Cox says defender Jordan Clarke and attacker Abo Eisa are doubts for Tuesday night's home game against Port Vale (7pm kick-off), while he also provided updates on Harrison McGahey and Kevin van Veen.
United come into the match with the Valiants looking to build on a brilliant 3-0 home derby win over Grimsby Town on Saturday, which Cox is looking to build on for the remainder of the season.
He told iFollow Iron: "I thought our work rate, endeavour and attitude was perfect on Saturday and that's what we've got to do for the next 22 games.
"Everyone had a spring in their step this morning. It's not been easy to train with the weather how it is, but we managed to get a bit of work done ready to prepare for tomorrow night. We have a big home game coming up, and are looking to get another three points that can push us further up the table.
"The Grimsby game is gone now. We enjoyed the match, the way we played and the result, but we've got to put that away and focus on Port Vale and how we're going to play. We'll do our homework on them but it's about what we do, how we're going to play and our intensity. We have to concentrate on what we do with the ball and without the ball.
"They've changed between a couple of formations recently and it will be nice to see (former Iron loanee) Jake Taylor (who signed for them from Nottingham Forest recently) return as he's a player I like and a good kid. He was really good around the place, trained well and was a good professional who I'm sure will have a really good career."
Continuing with the team news, he said: "Both Jordan and Abo have been unable to train. Jordan has been struggling with a thigh injury so we'll have to be careful, though Abo was out on the grass (after taking a whack to his knee late on in the match at the weekend). I'd say Abo is 50/50, with Jordan a little less so. We have a busy week with the Colchester away game on Friday as well, and we have to be careful with all the players.
"Everyone else seems to be fine. Harrison is training but we'll have to see how he is, but he's unlikely to be involved tomorrow. Kevin van Veen (hamstring) is back on the training pitch full time now, and has done a little bit of ball work and running. We're trying to push him over the next couple of weeks. His stats have been excellent and he's getting fitter, but we don't want to rush him too soon. We want him fit, right and playing games.
"Kev was winding Eisa up that he's still the main man after Saturday's game! But it's good to see, there's a good morale around the club at the moment, even though we've not been brilliant this season so far but hopefully the three points this Saturday will take us forward."
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