The winner at Valley Parade tonight reaches the quarter-finals.
The tie is at Valley Parade in Bradford on Tuesday, October 27.
In the United States, the game streams on Paramount+.
League One is the third tier of English football.
Bradford sit third in League One with the best defence in the division.
No League One side has let in fewer goals this season.
The Bantams beat Peterborough at Valley Parade in August.
They beat Barnsley on penalties after a 3-3 draw.
Danny Ormerod leads the line for Peterborough in his place.
The draw follows the Liverpool against Chelsea tie.
Quarter-final ties take place in the week of December 14.
See the team news, the cup routes, and what comes next.
Get the full breakdown, key numbers, and what happens next.
Read on Rive News