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BBC News, Suffolk
Greater Anglia has urged Ipswich Town fans to plan ahead if travelling by train to Saturday's derby match in Norwich.
The tie at Carrow Road falls at the same time as Aslef union members go on an overtime ban.
Some services have been cancelled, while others have been added to accommodate fans.
Jonathan Denby from the train company said he hoped the adjustments would make things "as smooth as it can be".
"Because there are some service cancellations, it's really important fans check the trains, particularly for getting to the match on time," he explained.