Merseyrail services on the Hunts Cross to Liverpool Central line could resume on Monday morning .
The organisation yesterday extended the cancellation of services to Tuesday as work continued on a suspected faulty cable.
But an update issued on Sunday said that repair work was "progressing well" and opened the door for services to resume on Monday.
Commuters were hit when services were cancelled from 6.30am on Thursday.
Since then rail replacement buses have run between Liverpool Central and Hunts Cross.
The issue has caused disruption for those travelling to work, Liverpool South Parkway and LIMF.
That could be over sooner than expected, however.
A statement issued by Merseyrail on Sunday afternoon said: "Train services between Hunts Cross and Liverpool Central are currently suspended due to a cable fault causing the power supply to the third rail to be severely reduced. Rail replacement buses are running between all affected stations.
"Network Rail have advised that services will continue to be suspended on Monday 22 July.
"Work to replace the cable is progressing well and it is possible that services will resume Monday morning. Please check back for the latest updates before you travel.
"We apologise for the inconvenience this may cause and thank you for your patience during this time."
Merseyrail is urging anyone thinking of using the service to check their journey before travelling at www.merseyrail.org
