Jessica Ennis-Hill announced that she is pregnant and will miss the Glasgow games.
Double Olympic gold medallist Mo Farah said he might skip the Commonwealth Games to recover from his first London Marathon in April.
World-record-breaking Jamaican sprinter Usain Bolt says he will probably only run in the 200m if he competes at all in Glasgow.
More top news
Demonstrators have blockaded the entrance tunnel to Heathrow Airport in apparent protest at plans to build a third runway.
A man was left red-faced after neighbours reported shouting and a woman screaming - which turned out to be his efforts to kill a spider.
A man who shot and killed his wife before posting a photo of her body - and a confession - to Facebook has been found guilty of murder.