Report as Ross County join Celtic, Rangers, Hibernian and St Mirren with an opening weekend win
The hosts started brightly, and they were rewarded when Ross Stewart emphatically scored from the spot (24) after Harry Paton was fouled inside the penalty area by Declan Gallagher.
Motherwell, who finished third last season, had a glorious chance to equalise when Coll Donaldson's shirt pull on Jordan White in the penalty area was spotted by referee Nick Walsh, but Liam Donnelly sent the spot-kick wide.
The visitors had Callum Lang sent off late on for a cynical challenge on Michael Gardyne as Stuart Kettlewell's side held on to join Celtic, Rangers, Hibernian and St Mirren with an opening weekend win.
Ross County started the better of the two sides and goalkeeper Trevor Carson came through a couple of early tests, stopping Lee Erwin's header and touching Stewart's strike from a tight angle onto the crossbar. บอลวันนี้888
The Northern Ireland international was given little respite as Gallagher conceded a penalty challenging for a loose ball inside the penalty area. Motherwell's new club captain claimed he won the ball as he lunged in on Paton but the referee pointed to the spot and booked the Scotland international.
However, Motherwell had a great chance to level immediately when Mark O'Hara played Christopher Long through but the striker took an extra touch and then hit the near post.
The visitors struggled to break County down for the rest of the first half and Stephen Robinson responded with Lang replacing O'Hara at the break.
Sherwin Seedorf made an impression when he came on and the winger set up Lang for a free header, but the on-loan Wigan forward saw his close-range effort palmed away by Ross Laidlaw.
The same move set up Motherwell's penalty as Donaldson was penalised for a tug on substitute Jordan White after Lang headed the ball across the face of goal.
Donnelly, who Motherwell's joint top goalscorer last season with 11, sent Laidlaw the wrong way, but fired his penalty wide of the post.
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