It will now take place on Tuesday January 26, kick-off 7.45pm.
The initial fixture at the County Ground was scheduled to take place this Saturday, but had to be postponed due to United's international call-ups.
The Whites' FA Cup first round tie against Oldham at Boundary Park on Saturday, streamed exclusively live on TheFA.com, made history by achieving a massive 176,000 plays.
It is believed to be a UK record for a free-to-view competitive football match on the internet.