Fans heading up from London to the Riverside on Saturday for Boro's match against Millwall (kick-off 3pm) are advised of severe rail disruptions both to and from the capital.
King's Cross station is closed for track upgrades on both Saturday August 24 and Sunday August 25, with no trains leaving from or arriving at the station.
All Grand Central trains have been cancelled on both days, with LNER operating a very limited service from Peterborough northwards.
Peak ticket restrictions have been removed for Friday August 23 on trains heading northbound.
A limited service in and out of Kings Cross will resume on Bank Holiday Monday (August 26) but supporters are advised that these services are likely to be extremely busy and to buy in advance where possible.
Timetables are due to return to normal on Tuesday August 27.