Solskjaer has blamed United's poor home form on red banners making it difficult for his players to pick each other out.
Solskjaer revealed United have changed the colour of the banners around the perimeter of Old Trafford from red to black, after players found it difficult to see each other.
“If you see the banners around the stadium now, they're not red anymore," said Solskjaer. “There's been a change.
“We've looked into this. There shouldn't be any reason, really. But some of the players have mentioned, you know, that split second decision you have to make – looking over your shoulder to see if your team-mate's there or not.
“It's the red shirt, on a red background, with the red seats, so we've of course tried to change that, along with the anti-racism campaign, of course. So itw as important it wasn't red anymore."