Motherwell will face Aberdeen in the Scottish Cup fifth round.
Graham Alexander's men are the only Lanarkshire representatives in the next round and they'll take on the Dons following their fourth round victory over Morton.
But it was far from plain-sailing against Championship opposition. The Ton took Motherwell to extra-time but Kevin Van Veen's penalty and a fine Liam Donnelly goal ensured a 2-1 win and progression.
