The Bantams have had a fantastic start to the league season, currently sitting in second position and on a run of three consecutive defeats, defeating the likes of Oldham Athletic, Stevenage and Mansfield Town.
Their opponents, Leyton Orient, had high expectations ahead of the new season with the appointment of Kenny Jackett and several new faces through the door, but things haven't gone so smoothly.
Leyton Orient have been struck with an injury crisis ahead of Saturday's meeting, with Aaron Drinan, Paul Smyth and Adam Thompson all ruled out.
Former Bantam Connor Wood will face a late fitness test to see if he can face his former club, after picking up a knock against Exeter earlier in the month.
Leyton Orient: Vigouroux; James, Beckles, Happe, Wood, Kyprianou, Pratley, Sotiriou, Kemp, Archibald, Smith
Bradford City: O'Donnell; Cousin-Dawson, O'Connor, Canavan, Ridehalgh, Watt, Songo'o, Gilliead, Vernam, Crankshaw, Cook
Ones to watch
Standing at 6'6, towering defender Happe has been a rock at the back so far this season for Jackett's side.
Forming a strong partnership with former Accrington Stanley defender Omar Beckles, Happe has provided defensive stability and has even managed an assist so far this season, despite playing so far back. Bradford fans will know what to expect from the 22-year old, who netted against them last season.
Currently the league's second top scorer, Cook has had an excellent start to his permanent career at Bradford.
The 30-year old proved to Bantams fans last season what he was capable of, but has started the season in flying colours, scoring four goals in four games, including a perfect hattrick against Stevenage and a late winner against Mansfield, and is proving himself as one of the most feared attackers in the division.
Referee: Simon Mather
Assistant referees: Damith Bandara/Geoffrey Russell
Fourth official: Robert Atkin
The O's have only managed to defeat the Bantams once since 2013, which came last season, but last time out it was Bradford who were victorious in front of their home fans.
A late penalty from midfielder Cooke sentenced Leyton Orient to defeat, in one of Ross Embleton's final games as manager of the London-based club.
How to watch
This game is a 15:00 BST kick-off, but unfortunately cannot be watched in the UK. However, it can be watched internationally through the clubs' streaming services on their website. Tickets are also still available for the match, however pay on the gate is not permitted due to COVID-19 restrictions.