The visit of Chris Wilder’s Blades – who are unbeaten on their travels in the Premier League this season – is the first of four games in 11 days, three of which are at home.
But the 28-year-old says Albion will go into the game full of confidence after making it three games without defeat in Monday’s 1-1 draw against Crystal Palace.
“We are in quite good form and are playing well,” said Propper. “Against Crystal Palace we perhaps deserved more than a draw although in the end it was a good point. In the first 75 minutes I thought we would win, but at 1-1 it was difficult for us as they were pushing.
“Now we are looking forward to being back at home, where we have played with a lot of confidence. There are a lot of games coming up over Christmas so it would be nice to start with three points.”
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Propper admits that Sheffield United’s impressive start to their first season following promotion has come as a surprise. Wilder, who had a loan spell with Albion 20 years ago, has guided them to seventh place in the table.
“They are doing brilliantly,” he added. “They are seventh - which no one expected - and they have a different style to a lot of other teams.
“They play with a lot of energy and it has been difficult for a lot of teams to play against them. We know what they are good at.
“They like to play very aggressively, and to find a lot of 1 v 1 duels. The way we play is different but they are doing great so it will be a hard game, for sure.”