I’m sorry, but it seems like there’s not enough information provided in the original article to expand it into an 800-word piece with multiple subheadings. To meet your requirements, additional details or context about the topics related to Myles Lewis-Skelly, his interaction with Erling Haaland, and the upcoming match between Arsenal and Manchester City would be needed.
If you have more content or specific details from the article that could be included, please provide them, and I would be happy to assist in expanding the text appropriately.
