Naomi Osaka will play Bianca Andreescu in the Libema Open quarter-finals after a commanding straight-sets victory over Suzan Lamens.

The four-time major winner took just 54 minutes to wrap up a 6-2 6-2 win over her Dutch opponent in t'Hertogenbosch.

Osaka looked sharp as she sought her second WTA quarter-final appearance of the season, having also reached that stage in Doha four months ago.

The Japanese hit 21 winners to 13 unforced errors, while converting four out of five break points against the world number 140.

Next up for Osaka is a showdown with 2019 US Open champion Andreescu in the last eight.

Data Debrief: Osaka storms into first grass-court quarter-final in six years

It was a dominant display by Osaka, who hit nine aces and won 15 of her 17 points on first serve (88.2 per cent).

The four-time major winner subsequently advanced to her first WTA quarter-final on grass since the 2018 Nottingham Open.

Naomi Osaka put her French Open disappointment behind her to advance to the next round of the Libema Open after beating Elise Mertens in straight sets. 

The 26-year-old had match point against eventual winner Iga Swiatek in the second round at Roland-Garros but failed to capitalise. However, that defeat was put to the back of her mind, winning 6-2 6-4 in the Netherlands. 

Mertens matched Osaka in the opening exchanges, but the Japanese would rally to take control and win the next three games to secure an early advantage. 

She showed signs of frustration in the second set as the Belgian threatened to take the encounter to a deciding set, but Osaka remained composed to see out the victory. 

Osaka will now face either Bernarda Pera or Suzan Lamens in the next round. 

Data Debrief: Osaka wins maiden grass encounter against Mertens

Osaka's victory saw her win 28 of her 31 first-serve points, accumulating to a 90 per cent success rate. 

The Japanese claimed her fifth victory over Mertens since their first meeting in Wuhan in 2019, but her triumph was the first encounter between the pair on a grass court.