After Maria Sharapova was an early casualty at the Qatar Open, normal service was resumed on a good day for the seeds in Doha.
The renewal of Garbine Muguruza's coaching relationship with Conchita Martinez got off to a strong start as she defeated Duan Ying-Ying.
Petra Kvitova extended a hugely impressive winning streak, while the likes of Caroline Garcia, Johanna Konta and Madison Keys were in fine form as they all kept alive their hopes of winning the WTA Premier 5 tournament.
MUGURUZA & MARTINEZ MAKE WINNING START
Having been in her corner during Muguruza's Wimbledon triumph last year when regular coach Sam Sumyk was absent as his wife was expecting their first child, Martinez is back in the Spaniard's team as she tries to revive her fortunes after a disappointing 2018 to date.
Muguruza lost to Hsieh Su-wei in the second round of the Australian Open, but a shock was never on the cards against Duan, the two-time grand slam champion winning 6-3 6-4 to reach the third round.
She needed eight match points to seal the win and said afterwards: "It was a very tough match. It doesn't matter how many match points I had, I won! That's the important part, and I'm so happy because it's been so long since I've competed. It's good to have a victory."
Muguruza will face either Elise Mertens or Sorana Cirstea in the next round. Mertens beat Timea Babos in three sets while Cirstea overcame Maria Sakkari.
EIGHT IN A ROW FOR KVITOVA
After winning in St Petersburg two weeks ago, Kvitova made a stunning start as she dispatched wildcard Cagla Buyukakcay in under an hour.
The Czech made it eight victories in a row, coming through 6-3 6-0 and hitting 34 winners and only 15 unforced errors in the process.
She now faces a second-round meeting with Agnieszka Radwanska and said of her upcoming encounter with the former Wimbledon finalist: "I know that she's pretty tricky. And that's all I can really say, nothing more. She can play unbelievable. So I need to be ready for that."
GARCIA ENDS CIBULKOVA BATTLE WITH BAGEL
Seventh seed Caroline Garcia was pushed to a third set by Dominika Cibulkova and will have expected a tough fight from the 2014 Australian Open finalist in the decider.
But the Frenchwoman instead raised her game and dished out a bagel to complete a 6-3 6-7 (3-7) 6-0 victory and reach the third round, where she will face either Kristina Mladenovic – a victor over Peng Shuai – or qualifier Anna Blinkova.
Konta, seeded 10th, hit her stride after a shaky first set to see off Bernarda Pera 7-6 (7-5) 6-1 and Keys needed only 55 minutes to defeat Wang Qiang 6-1 6-4.
Ninth seed Julia Goerges, 13th seed Anastasija Sevastova and 14th seed Magdalena Rybarikova all progressed to the second round by beating Lucie Safarova, Donna Vekic and Fatma Al-Nabhani respectively.
WITTHOEFT SET FOR WOZNIACKI TEST
Carina Witthoeft thrashed German compatriot Tatjana Maria 6-3 6-0, her dubious reward a clash with world number one and Australian Open champion Caroline Wozniacki.
Elsewhere in the draw there were wins for Carla Suarez Navarro, Samantha Stosur, Marketa Vondrousova, Barbora Strycova, and Alize Cornet.
|I enjoy living this way! - Aubameyang won´t change lavish lifestyle|
|Kohli rested for Nidahas Trophy|
|QB Bortles signs contract extension with Jaguars|
|Shohei Ohtani has mixed results in MLB debut|
|Mustafi wary of De Bruyne threat in EFL Cup final|
|Chumba and Dibaba reign supreme at Tokyo Marathon|
|Curry, Durant help Warriors dominate Westbrook´s Thunder|
|Coman suffers ankle injury in Bayern draw|
|I was right to turn down Man City move in 2016, says Laporte|
|Tiafoe wins two matches in a day to reach Delray Beach final|
|Navas not surprised by Ronaldo´s Benzema gesture|
|Ausilio: Contract talks with Inter´s Icardi done in silence|
|Mourinho tells McTominay to follow his heart amid international headache|
|I play for France´s biggest club – Marseille star Payet fires barb at PSG|
|Clippers owner says team traded Griffin for ´chemistry´ reasons|
|Ben Stokes returns to face New Zealand in opening ODI|
|Main priority was to win - Spalletti praises Inter´s ´heart´ after beating Benevento|
|Verdasco to meet Schwartzman in Rio Open final|
|Father fuels Conte´s fire ahead of Mourinho reunion|
|Tiger Woods shoots first sub-70 round since 2015|
|Valverde steers clear of Barcelona yellow card controversy|
|Montpellier pull clear of Racing in Top 14|
|Connacht bring Benetton back to earth|
|Butler suffers meniscus injury but Timberwolves ease ACL fears|
|Play like it´s a friendly - Guardiola reveals finals secret ahead of Arsenal clash|
|Barcelona equal record for unbeaten LaLiga run|
|Jones fronts up after Scotland smash England|
|Wales disappoint Gatland: We were the creators of our own demise|
|Inter 2 Benevento 0: Nerazzurri pick up much-needed win at San Siro|
|Barcelona 6 Girona 1: Suarez treble and Messi masterclass settle Catalan clash|
|Messi makes Girona 36th LaLiga victims to set new record|
|Nigeria demolish Rwanda in FIBA qualifying|
|Jonker shines but India still seal T20 series|
|Deeney ´not bothered´ after ending drought from open play|
|Tigers back to business after Hardaker departure|
|Championship Review: Fulham beat Wolves, Sunderland hold Boro in ill-tempered thriller|
|Lions bounce back to win, Schoeman leaves it late for Bulls|
|Russell eyes Six Nations title after inspiring Scotland to win over England|
|Watford 1 Everton 0: Stunning Deeney finish moves hosts six clear of trouble|
|Benitez rues missed chances as Newcastle lose two-goal lead|
|Heynckes ´can live´ with home Bayern draw|
|Ronaldo is a team player - Zidane hails Real Madrid star´s Benzema gesture|
|West Ham fans reference Hitler in protest at club´s owners|
|Dyche dismayed by decisions before Gabbiadini goal|
|Russell´s redemption comes as Scotland seal rare England win|
|Wagner impressed with Huddersfield´s commitment after vital win|
|No place like home for Schmidt as Ireland leave it late to sink Wales|
|Liverpool win had everything – Klopp enthuses over West Ham´s Anfield rout|
|Khachanov sets up Pouille final after Berdych upset|
|Dunk equals record for own goals in a single Premier League season|
|Chiefs return to winning ways in thriller|
|Real Madrid 4 Alaves 0: Ronaldo at the double as ´BBC´ delight|
|Burnley 1 Southampton 1: Gabbiadini grabs late leveller|
|Brighton and Hove Albion 4 Swansea City 1: Two-goal Murray helps end Swans´ unbeaten run|
|Bournemouth 2 Newcastle United 2: Hosts in thrilling fightback after Gayle double|
|West Brom 1 Huddersfield Town 2: Van La Parra and Mounie seal vital win|
|Liverpool 4 West Ham 1: Salah nets again as Reds climb to second|
|Svitolina retains Dubai crown as Kasatkina runs out of steam|
|Ill Neymar included in PSG squad for Le Classique|
|Bayern Munich 0 Hertha Berlin 0: Lewandowski´s run ends as leaders are held at home|
|Ireland see off Wales in Dublin thriller to stay perfect|
|Gattuso surprised by AC Milan´s growth since taking over|
|Lambert defends ´best goalkeeper in Britain´ Butland after own goal error|
|Stokes expected to face Black Caps|
|Mkhitaryan, Ozil potential excites Mertesacker|
|A-League Review: Perth Glory in dramatic win, Melbourne Victory end losing streak|
|Leicester City 1 Stoke City 1: Butland howler costs Potters|
|Matic insists Man Utd can still do ´big things´|
|Fisher´s birdie streak secures share of Qatar Masters lead|
|Chinese Super League transfer window makes Simeone ´uncomfortable´|