Tony Watt's superb first-half goal earned Motherwell a 1-0 win over Dundee United in Tuesday's cinch Premiership fixture at a rain-lashed Fir Park.
The Steelmen had Barry Maguire sent off for a second booking late in the game but they held on for a third win in four matches.
The victory moves Graham Alexander's men to within a point of fourth-placed United.