Sheffield United manager David Weir has admitted that his side will have to cope with the momentum in Bradford's side if they are to earn a result at Valley Parade.
Bradford have won four points from their first three games after promotion from League Two, and Weir is expecting the Bantams to provide the Blades with a tough test.
The 43-year-old told the club's official website: "Bradford have started the season well, as you would expect from a team with the momentum of winning promotion.
"They are dangerous up front, organised and hard-working. Last season, they had a winning mentality and a fantastic run in the League Cup.
"To have two trips to Wembley in one season is remarkable and they will have high hopes of more success this time around."
Sheffield United are level on points with Bradford in League One, but are currently four places lower on goal difference.