As of my last knowledge update in January 2022, I don’t have information on events or awards that occurred in 2023, including the “Athlete of the Year” award from Time magazine. Therefore, I cannot confirm or provide details about Lionel Messi winning such an award in 2023.

It’s important to note that my information might be outdated, and I recommend checking the latest news sources or the official Time magazine website for the most recent and accurate information regarding awards and recognitions. Lionel Messi is an accomplished football player, and if he received such an honor, it would be a significant achievement in his career.