Top-level tennis is back in the UAE with the Dubai Duty Free Tennis Championships taking place across two weeks. With the <a href="https://www.thenationalnews.com/sport/tennis/dubai-tennis-championships-draw-dominic-thiem-and-david-goffin-on-course-for-quarter-final-clash-1.1183346">men's tournament being completed later this week</a>, the women took centre stage with Garbine Muguruza sealing the title with a <a href="https://www.thenationalnews.com/sport/tennis/garbine-muguruza-relies-on-renewed-consistency-to-win-dubai-duty-free-tennis-championships-title-1.1183484">7-6, 6-3 victory over Barbora Krejcikova</a>. A late bid to get world No 2 Rafael Nadal to play in the men's event failed when the <a href="https://www.thenationalnews.com/sport/tennis/rafael-nadal-not-ready-after-declining-dubai-duty-free-tennis-championships-wild-card-1.1182304">Spaniard decided he was not yet fit enough</a> to accept a wildcard invitation. Andy Murray, another former world No 1, <a href="https://www.thenationalnews.com/sport/tennis/andy-murray-to-miss-dubai-duty-free-tennis-championships-1.1182944">withdrew from the tournament</a> after his wife gave birth to their fourth child. It has been a bad week at the office for two of football's greatest players of all-time when Lionel Messi and Cristiano Ronaldo both suffered disappointing exits from the Champions League at the last-16 stage. Ronaldo's Juventus defeated Porto 3-2 in Turin, but were <a href="https://www.thenationalnews.com/sport/football/cristiano-ronaldo-in-shock-as-juventus-crash-out-of-the-champions-league-again-in-pictures-1.1181257">knocked out on the away-goals rule</a> after drawing 4-4 on aggregate. Messi and Barcelona, <a href="https://www.thenationalnews.com/sport/football/gerard-pique-5-lionel-messi-7-an-incredible-10-for-kylian-mbappe-barcelona-v-psg-player-ratings-1.1167608">4-1 down from the first leg</a> at Camp Nou, could only <a href="https://www.thenationalnews.com/sport/football/psg-v-barcelona-player-ratings-frustration-for-messi-and-griezmann-as-barca-are-knocked-out-of-champions-league-1.1182067">draw the return match 1-1 in France</a>. And that meant it was the first time at least one of the dynamic duo had failed to appear in the quarter-finals since 2005.