These are Rafael Nadal's custom unreleased Nike sneakers from the 2023 Australian Open. Nike personally made these sneakers for Nadal, and they were intended for his use during the tournament; Nadal did not end up wearing this pair, as he was expected to reach later rounds. Nadal had a season-ending injury in the 2nd round against Mackenzie McDonald, marking his last ever match at the Australian Open. 

The custom sneakers are completely different than any general release retail pair, and feature Rafa's name and logo throughout. They also feature two flaming tennis balls on the left shoe with '09' and '22', representing his Australian Open victories in 2009 and 2022.