IAAF World Championships Day 5 highlights: Conseslus Kipruto wins 3rd Gold for Kenya in men's 3000m steeplechase as Kipyegon Bett bags bronze in men's 800 metres

11:40pm Kenya's Kipyegon Bett  bags bronze as Frenchman Bosse wins men's 800 metres title

Pierre-Ambroise Bosse of France won the men's 800 metres world title on Tuesday.

The 25-year-old -- fourth in the Olympic final last year -- won in 1min 44.67sec to beat home Adam Kszczot of Poland, who had to settle for silver as he had in the 2015 final.

Kenya's Kipyegon Bett took the bronze.

11:30pm Kenya’s Conseslus Kipruto wins 3rd Gold for Kenya in men's 3000m steeplechase

Kenyan Conseslus Kipruto mastered the threat of American favourite Evan Jager to win the world men's 3000m steeplechase gold on Tuesday.

The Olympic champion kicked with 300 metres remaining and held on to see off the threat posed by Morocco's Soufiane Elbakkali, who also surged past Jager coming into the final straight.

Kipruto timed 8min 14.12 sec, with Elbakkali taking silver at 0.37sec and Jager bronze (8:15.53).

10:03pm Men's 3,000m steeplechase: Worried Conseslus promises his best in  final at 11:10pm

Kenya's dominance in the water and barrier race is under great threat.

"It is going to be a very tough race," Olympics 3,000m steeplechase champion Conseslus Kipruto has said ahead of today's 11:10pm final.

Kenya's Conseslus Kipruto (L) looks across at US athlete Stanley Kipkoech Kebenei (R) as they race to the finish line in the third heat of the men's 3,000m steeplechase athletics event at the 2017 IAAF World Championships at the London Stadium in London on August 6, 2017. / AFP PHOTO / Jewel SAMAD

The steeplechase event is synonymous with Kenyans, who have won five consecutive world titles. But for the first time in as many championships, an 'outsider', Evan Jager of USA, poses the greatest threat to the Kenyans' quest for glory.

Kenya's Ezekiel Kemboi, compete in the men's 3000-meter steeplechase final during the athletics competitions of the 2016 Summer Olympics at the Olympic stadium in Rio de Janeiro

9:48pm Men’s 800m: Kenyan keeps hope alive at 11:35pm tonight

Nation turns to Bett for glory All eyes will be on the World Under-20 champion after Korir and Rotich fail to qualify.

Fancied by many to succeed World 800m record holder David Rudisha, World Under-20 champion Kipyegon Bett gave a gun-to-tape performance in the third semi-final, winning in 1:45.03.

And when athletes parade in tonight’s final, all eyes will be on Bett, Kenya’s only representative in the race.

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Born in Kericho, the county that produced 1968 Mexico Olympics 800m silver medallist, Wilson Chumo, Bett’s talent was spotted by legendary coach Japhet Kemei while he was still a pupil at Kiptere Primary School.

Kenya's Kipyegon Bett (C) wins ahead of US athlete Drew Windle (3L) and Sweden's Andreas Kramer in the heats of the men's 800m athletics event at the 2017 IAAF World Championships at the London Stadium in London on August 5, 2017. / AFP PHOTO / Jewel SAMAD

Men's Pole Vault final

Frenchman Renaud Lavillenie has never won a world gold -- he has a haul of four minor medals -- and his form this season suggests he is in danger of going without again. However the 30-year-old returns to the stadium where he won Olympic gold in 2012 and twice in the Diamond League. He looked in better shape in qualifying whilst others struggled. "I love competing. I love fighting. And I think it is going to be very interesting," he said.

Men's 800 metres final

Robbed of a lot of its interest in the absence of the injured David Rudisha, it would seem set up for Botswana's Nijel Amos to go one better than he did back in 2012 in the Olympic final when his Kenyan rival broke the world record. The 23-year-old Commonwealth Games champion's chances would appear further strengthened by the surprise failure of the previously unbeaten Emmanuel Korir to make the final. However, danger lurks in the shape of Poland's 2015 silver medalist Adam Kszczot who beat him in the semi-final. The 2013 world champion Mohamed Aman of Ethiopia could also be a contender as well as young Kenyan Kipyegon Bett.

Women's Javelin final

China could be celebrating gold based on the qualifying round. Lyu Huihui may have saved her best form for when it counts as she set a new Asian record of 67.59 metres and even the 28-year-old 2015 silver medalist was surprised by her effort. Defending champion Kathrina Molitor of Germany -- who missed out on the Olympics last year -- also looked to be approaching medal winning form whilst Croatia's Olympic title-holder Sara Kolak struggled to qualify.

Men's 3000m Steeplechase final

American Evan Jager will bid to break Kenya's monopoly on the event, runners from the east African powerhouse and Kenyan-born Qatari Saif Saaeed Shaheen (in 2003 and 2005) having won every edition of the steeplechase. Kenya swept the podium in Beijing two years ago and their line-up is again strong. Olympic champion Conseslus Kipruto and four-time world champion Ezekiel Kemboi will be two of a formidable outfit alongside the Ethiopian trio of Getnet Wale, Tafese Seboka and Chala Beyo, and three-time Olympic medallist and twice world medallist Mahiedine Mekhissi of France.

Men's 400m final

Wayde van Niekerk has his first shot of a medal in his quest for an ambitious 200/400m double, the first since American Michael Johnson achieved the feat in the 1995 Gothenburg worlds. The 25-year-old South African, Usain Bolt's self-proclaimed successor as the next track star, is defending world and Olympic champion and world record holder, but he faces a loaded field that is sure to test him to the limit.