LONDON -- Damian Warner's hopes of a medal in the decathlon at the world track and field championships have faded.

With one event remaining -- the 1,500 metres -- the 27-year-old from London, Ont., is in fifth place.

Warner, a world silver and bronze medallist, is competing a few days after being quarantined with the stomach bug going around the Canadian team's hotel.

Just a day after his 48-hour quarantine ended, he finished fourth after Friday's Day 1.

He moved into third this morning by winning the 110-metre hurdles in 13.63, but dropped to fifth after the discus, and remained in fifth after pole vault and javelin, with 7,554 points.

Kevin Mayer of France is the leader with 8,067, while Germany's Rico Freimuth is second with 7,894, and Kai Kazmirek of Germany third with 7,796.

Mohammed Ahmed, 26, from St. Catharines, Ont., finished sixth in the men's 5,000 metres in 13 minutes 35.43 seconds. He was fourth in the 5,000 at the Rio Olympics.

Ahmed, who was born in Mogadishu, Somalia, but spent much of his childhood in Kenya before moving to Canada raced to eighth -- a Canadian-best in the distance -- in the 10,000 metres last week.

Ethiopia's Muktar Edris won the 5,000 in 13:32.79, while British great Mo Farrah, in his final world championship race, settled for silver in 13:33.22.

Justyn Knight, 21, of Toronto, finished ninth in 13:39.15.

Despite missing star Andre De Grasse, Canada's men's 4x100 relay team advanced to tonight's final. The team of Gavin Smellie, Aaron Brown, Brendon Rodney, and Mobolade Ajomale ran 38.48 seconds this morning to grab the eighth and final qualifying spot.

The Americans had the fastest time of the day of 37.70, ahead of Britain and Jamaica.