On nights like yesterday when Val Adams won her fourth World Championship title, it's easy to absorb the joy enveloping the victor and consider them invincible.

Adams' joy in blitzing her competition this morning was boundless, writes Andrew Alderson who was there to witness her history-making win.

"I'm just f***ing stoked." Val Adams didn't mince words after taking her fourth world championship title and becoming the most prolific shot putter in history.

Some dullard, a shop assistant or security staff, will look at you with bleak, robotic eyes and grunt to suggest your very existence has ruined their day, writes Andrew Alderson.

For shot putter Val Adams to catalogue 2013 under 'S' for success, it's understood she wants a personal best around 21.50m at the world championships in Moscow.

The Jamaican athletics team is focusing on the "positive side of life" in the wake of a doping scandal that has rocked track and field, according to 200m medal hopeful Warren Weir.

Racewalker Quentin Rew says he will compete in the IAAF World Athletic Championships in Russia with a good friend in the back of his mind.

Shot putter Valerie Adams has slammed Nadzeya Ostapchuk, saying she "tainted the sport" and "took the moment away" at last year's Olympic Games.

No current athlete transcends sport more - nor has a greater responsibility to perform clean - than Usain Bolt.