After conceding a goal to Adnan Januzaj, Courtois critiqued Pickford's attempt by taking the p*ss out his height.
The words in question from the Belgium number one came after his side secured a 1-0 win over the English in their final World Cup 2018 group stage game. "He was too busy throwing his legs in the air", he told Voetball24.
Kirkland has since publicly called out Courtois for his comments, stating: "I think what people said, especially Courtois, was out of order".
He not only produced a stunning save in normal time but also prevented Carlos Bacca from scoring in the penalty shootout.
'It's all about the set position and I got a hand to it.
"It's risky if I start to get carried away, but I'm proud of the way we're playing", he said.
'I did all my research.
"I was in a massive whirlwind but I saved it with my left hand".
"I might be young but I've got good mental strength and experience and I used that today".
Should England get past a resilient Swedish side, they will face the victor of the quarter-final between hosts Russian Federation and Croatia in the last four.
"This thing about Jordan".
But after starring as Belgium knocked out Brazil to reach the semi-finals on Friday evening, he attempted to bury the hatchet, telling the BBC: 'This thing about Jordan, I want to say and clarify, because I heard a lot of stuff, I never mocked his height, I want to make that clear because I would never mock a height of a goalkeeper. I never mocked his height, I want to make that clear.
'I think he's a great goalkeeper, he proved it this year.
'I only said that maybe I would have saved it because I'm 15cm taller but I never mocked his height because I know he's a great goalkeeper.
I want to clarify something about Jordan.