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The player was sent off after colliding with Nico Raskin, catching the Belgian's shin with his studs despite initially connecting with the ball.
The decision, made following a VAR review, incited considerable debate.
Fotheringham has now shared his perspective on the incident.
He said: "The red card was unlucky I felt.
"I don't think I deserved it – it's one of those that looks worse when you see it with a still image."
Regardless, he accepted the decision and focused on his return to the team after serving his suspension.
"There was nothing I could do about it, though," he continued.
"All I could focus on was getting back into training, working hard and being ready when I was next called upon."