Martin O'Neill, he rightly deduced, was not a man to mess about.
"I came into his office and told him everything. I didn't want to start with a lie because when you start with a lie it can snowball. So I told him the truth."
O'Neill listened, took it in and satisfied himself that his £3.5m signing was telling the truth.
"I hadn't done anything wrong and I think everyone at the club knows that," Knight continues. "The manager and all the backroom staff have all stuck by me. I just want to repay them now by playing well. I didn't even think I would play [against Chelsea]. I thought he [O'Neill] would think my head wasn't right and leave me out."
It was a show of support he had not expected, and his gratitude was evident.
"When I scored (against Chelsea) I ran to the dugout to give the manager a high-five. It was a kind of thank you. I wanted to celebrate with him and show my appreciation."