Boro's away match against Birmingham City has been postponed due to the Blues' progress in the Emirates FA Cup.
Birmingham, now managed by Tony Mowbray, beat Hull City in an Emirates FA Cup third round replay on Tuesday evening, and will play again in that competition on the weekend of Saturday 27 January.
Boro's game against the Blues was originally scheduled for that date, and will now be rescheduled - with a new date and ticket information confirmed in due course.