Luuk de Jong scored a late winner in Sunday's semi-final.
Though many were at fault for the goal, Lindelof received a the majority of the blame as he was unable to deal with the cross which De Jong latched onto.
After the ball hit the back of the net, tempers flared as United's goalscorer Fernandes argued with Lindelof - and cameras appeared to show the latter aiming an expletive slur at his teammate.
Commenting on the heated on-pitch interaction, United boss Solskjaer said he welcomes it when his players "put others to account".
“It was a disappointing goal to give away because we were on the counter-attack," said the Norwegian after the match.
“Maybe it's a disappointing goal to concede, and I want those players to be accountable and to put others to account.
"Then again, the cross got deflected so Brandon was a bit unlucky, Victor just got caught with the ball looping over him after that deflection. So I think it was just a bit of frustration that took the boys."
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