- World Athletics Championships, 2nd Day
Bolt storms to gold in 100m final
Usain Bolt regained the 100 metre world title he lost two years ago as the Jamaican recorded a time of 9.77 seconds to take gold in Moscow.
He seemed to start sluggishly before he powered past American Justin Gatlin, who took silver in 9.85 ahead of Bolt's compatriot Nesta Carter with 9.95. Britain's James Dasaolu finished dead last with a time of 10.21.
"I am happy but I wanted to do better," Bolt told BBC Sport. "My legs were sore after the semi-finals, I don't know why, but the world record wasn't on so I came out just to win. Back in Jamaica, they do not expect less than that from me. They always expect me to dominate!"
Dasaolu said: "Yesterday was the first time I had run out of blocks for three weeks and I was just happy to be in the final. This is my first year going under 10 seconds and hopefully I can build on this."
Earlier in the day, Dasaolu reached the men's 100m final but it was heartbreak for Dwain Chambers and Harry Aikines-Aryeetey as they crashed out of the World Championships in Moscow.
After scraping through the heats as the third fastest loser, Dasaolu bounced back with a swift sprint of 9.97s in the second semi-final to finish third behind Nickel Ashmeade (9.90s) and Kemar Bailey-Cole (9.93s). Dasaolu goes into the final with the joint-sixth fastest time.
"I am just relieved after the shocker I had yesterday and I have given myself a chance of qualifying. I am hoping I have a done enough to compete in the final," Dasaolu said.
Aikines-Aryeetey, 24, finished last in the first semi-final in 10.34s, while Chambers finished sixth in the second semi in 10.15s.
"I am speechless. That is not what I am about, I am better than that," a disappointed Aikines-Aryeetey said. "It's disappointing, you work hard to build up to this, it is the World Championships so I will give no excuses but I will work with my coach and improve. I felt great before the race, I started well but you didn't see the real Harry today."
Usain Bolt overhauled Mike Rodgers (9.93s) to take the third semi-final in 9.92s, with Keston Bledman (10.08s) of Trinidad third.
Andrew Osagie narrowly qualified for Tuesday's 800m final but there was disappointment for Michael Rimmer who missed out. Osagie was fourth with a season's best of 1m 44.85s in a competitive first heat but managed to take one of the two fastest loser spots. Rimmer finished sixth in the second semi-final in 1m 47.06s.
"It was tough," said Rimmer. "I am not making any excuses but I think that first round took a bit out of me. I expected it to be a bit closer but it wasn't to be. I gave it my best but unfortunately on the day it just wasn't to be."
Christine Ohuruogu is through to the 800m final after a late surge saw her past both Nastasha Hastings and Novlene Williams-Mills. She could even afford to slow up before the line and finish in 49.75 seconds.
Christine Ohuruogu's coach, Lloyd Cowan, said: "We absolutely can't take anything for granted [in the final]. There are six girls inside 50 seconds and most of them are going to be even closer to the line in the final.
"At the end of the day I'll just be happy if she puts together a great race tomorrow, that's all I want."
Shara Proctor crashed out of the women's long jump after finishing sixth. American Brittney Reese added world gold to her Olympic crown after her jump of 7.01m edged Blessing Okagbare's 6.99m. Ivana Spanovic took bronze with 6.82m, with Proctor three centimetres back.
"I gave it my all but unfortunately for me both calves cramped up so I could not perform to my best," Proctor said. "The first jump I was feeling good and healthy but everyone after that my calves cramped up so I couldn't do anything. I was prepared to come out here and give it my all. I knew seven metres would get me a medal and I really thought I could achieve it."
Hannah England, a silver medallist in Daegu who failed to reach the London 2012 final, finished strongly to reach the 1500m semi-finals. Laura Weightman, who had been struggling for fitness after a fall at the British trials which left her on crutches, will not join her compatriot after finishing in 11th place.
England clocked a time of four minutes 08.05s. She said: "I thought I ran a pretty good race until the bell and then suddenly there was a bit of pushing and shoving and I was way back.
"But I just had to relax and tried not to panic. I knew I had a strong last lap and could turn it on coming into the last 100m and get into the top six."
"I knew it was going to be tough," said Weightman, who was in clear distress after her heat. "I felt OK for the first 600m but after that I just didn't have anything in my legs.
"I tried to give it everything I had but I just couldn't match the pace of the other girls. It is disappointing I couldn't perform any better but I have to thank everyone who helped me get to the start line."
Will Sharman finished third in his 110m hurdles heat in 13.51s, and admitted he couldn't wait to compete in the semi-finals.
"I am so relieved. That is the mundane part over. Tomorrow is when the boys get rough and ready," Sharman said after his heat. "I am really looking forward to the semi-finals. All I need is a good night's sleep.
"I think that is my fastest opening round at a major championships and I am in great shape. I could even do a PB here again."
In the 400m, Nigel Levine reached the semi-finals with a time of 45.41s after finishing fourth from lane two in his heat. "I would have liked to have come in the top two," Levine said. "I was leading coming off the bend but I tied up in the end. But am through and hopefully I will get a better lane tomorrow and qualify for the final."
Asha Philip qualified for the women's 100m semi-finals after finishing third in her heat in 11.29s.