Julia Riera defeated Kristina Mladenovic 6–3, 6–0 in the first round of the WTA 250 event in Rabat on clay on 22 May 2023. As the pre-match favourite at odds of 1.75, Riera delivered a commanding performance, dropping only three games across two sets against her French opponent. Mladenovic, entered at 2.19, offered little resistance in what proved a one-sided encounter. The Argentine's clinical display suggests strong form heading into the tournament's later stages.