Defending champion Roberto Bautista Agut has crashed out of the Dubai Duty Free Tennis Championships.
Last year's winner went down in three sets to Georgia's Nikoloz Basilashvili 7-6, 4-6, 3-6.
Earlier in the day, top seed Kei Nishikori was knocked out by Poland's world number 77 Hubert Hurkacz 5-7, 7-5, 2-6.
Elsewhere, Gael Monfils strolled into the quarter-finals with a 6-3, 6-2 win over 2016 runner-up Marcos Baghdatis.
McIlroy roars back into contention with third-round 66 at PGA Championship
Rory McIlroy roared back into contention at the PGA Championship with a third-round 66 on Saturday at Aronimink, recovering from his disastrous opening round to revive hopes of a second straight major title.
Semenyo magic hands Man City 1-0 FA Cup win over Chelsea
Manchester City's Antoine Semenyo produced a moment of magic to win the FA Cup on Saturday, a 1-0 victory over Chelsea completing an English cup double for Pep Guardiola's side.
FIFA says it held positive talks with Iran's FA ahead of World Cup
FIFA Secretary-General Mattias Grafstrom held a constructive and positive meeting with Iran's FA (FFIRI) President Mehdi Taj on Saturday, he told Reuters, expressing confidence about the country's participation at this year's World Cup.
Svitolina fights off Gauff to win third Italian Open title
Elina Svitolina signalled her French Open ambitions by battling past world number four Coco Gauff 6-4 6-7(3) 6-2 in the Italian Open final on Saturday to lift her first claycourt title of the season ahead of Roland Garros.
Chelsea agree deal with Alonso to take over as head coach, reports say
Chelsea have agreed a four-year deal with former Real Madrid and Bayer Leverkusen manager Xabi Alonso to become the Premier League club's head coach, Sky Sports reported on Saturday.
