Anna Thea Madsen won an important clash for Denmark at the Uber Cup in China ©Getty Images

Anna Thea Madsen won a tense final rubber to book Denmark's place in the quarter-finals of the Badminton World Federation (BWF) Uber Cup.

With the Group A clash with Malaysia delicately poised at 2-2, Madsen saw off Ho Yen Mei 22-24, 21-13, 21-13 in a contest which lasted nearly an hour.

It meant that Denmark joined the dominant Chinese on registering two wins from two, condemning the Malaysians to an early exit thanks to the 3-2 victory.

“I was quite fresh despite losing the first game,” Madsen said.

“I could see she was a bit tired.”

In the other Group A match, China eased past Spain 5-0 in front of their home crowd at Kunshan Sports Center Stadium.

This came despite Spain boasting world champion Carolina Marin, who was beaten 19-21, 21-18, 21-19 by home favourite Wang Shixian.

Elsewhere, Thailand beat Indonesia 3-2 to top Group C, with both teams already qualified.

Indonesia beat Thailand in the Thomas Cup to go through
Indonesia beat Thailand in the Thomas Cup to go through ©Getty Images

Hong Kong defeated Bulgaria by the same scoreline in a dead rubber.

In Group D, India booked their place in the knock-out stages by thrashing Germany 5-0.

In the men's Thomas Cup, there was further good news for Denmark as they routed New Zealand 5-0 to book their place in the last eight in Group D.

Chinese Taipei, 5-0 winners over South Africa, also progress, with the two sides meeting tomorrow to determine the group winners.

Malaysia beat South Korea to top Group C - with both teams already assured of progression.

England saw off Germany 4-1 in a battle between two countries who were already out.

In Group B, Indonesia beat Thailand 4-1 to book their passage through, while Hong Kong squeezed past India 3-2.

The Thais will play Hong Kong tomorrow to decide who else qualifies.

The Thomas Cup and Uber Cup are the world team competitions for men and women respectively, with action continuing in China until May 22.