体坛英语新闻：Gong wins China's first gold medal, surprise victories for Warholm and Francis

Karsten Warholm (C) of Norway competes during Men's 400m Hurdles Finalon Day 6 of the 2017 IAAF World Championships at London Stadium in London, Britain, on Aug. 9, 2017. Karsten Warholm claimed the title with 48.35 seconds. (Xinhua/Wang Lili)

In the day's other finals, two youngsters upset verterans to win the gold medals.

Norway's Karsten Warholm, 21, scored a surprise victory in the men's 400 meters hurdles in 48.35 seconds. Turkey's Yasmani Copello, the European champion and Oympic bronze winner last year, took silver in 48.49 and former twice world champion Kerron Clement of the United States won bronze in 48.52.

"I truly don't believe it," said Warholm. "I've worked so hard for this but I don't know what I have done. This is an amazing feeling."

"I'm world champion, that's crazy. A lot of hard work and dedication has got me here so thank you to my coach for getting me in a position to challenge for a world title.

"I got out well and managed to hold it really well. I'm so proud of my performance. I hope people back in Norway are as happy as I am."

Warholm, a former European junior decathlon silver medalist two years ago, has found that 400m hurdles is his event since this season, winning two Diamond League titles in Oslo and Stockholm.