Motherwell are fourth in the Ladbrokes Premiership after beating Hearts 1-0 at Fir Park on Saturday.
Lionel Ainsworth scored the only goal after 28 minutes as Mark McGhee's men came out on top in their first fixture after the split.
In the day's other top-flight game, Dundee defeated Partick Thistle 2-1 at Firhill thanks to a double from Kane Hemmings. Kris Doolan scored for the Jags.
