Nigel Clough believes Yeovil Town's current league position doesn't give a true reflection of the ability within the Glovers squad.
Gary Johnson's men arrive in South Yorkshire is 21st place, just a point above the bottom four, but the United manager is tipping them to be much higher come the final reckoning at the end of the season and is wary of their threat ahead of Tuesday's clash.
Clough remarked: "Yeovil have been a bit up and down, they have had to adapt to life back in League One, but they are settling down now, similar to us in some respects.
"They are more than capable on their day and I wouldn't be surprised if they were in and around the top six at the business end of the campaign.
"By all accounts they were very competitive against Swindon at the weekend, arguably they deserved to win, so we won't be taking anything for granted because they are likely to come here and give a very good account of themselves."
The Gaffer shares the view of a fellow League One manager that this division is more competitive than 12 months ago, in contrast to the league above in the opinion of Clough, who added:
"I was talking to Phil Parkinson after the game on Saturday and we both agreed that this is a stronger league this time around, compared to last season, it certainly has more depth.
"We have some strong teams in and around and we know we are a few points short of where we should be, but we are there or thereabouts and we are capable of improving and moving upwards.
"Whereas I believe the quality in the Championship has perhaps dipped a bit and there are a few surprises amongst the early pacesetters."