Motherwell organised two pitch inspections following heavy rain but the match was called off less than two hours before kick-off.
The Lanarkshire club said on their Twitter feed: "Tonight's match with Dundee Utd has been postponed due to a small area on the East Stand side which is waterlogged.
"The club would like to apologise for any inconvenience the call off causes. We tried to give it every chance but it just came up short."
- Sports & Recreation
- Dundee Utd