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.
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Colo became a mother of three, grandmother of 16, great-grandmother of 12 and great-great-grandmother of three.
The district's director of homeland security has said officials are planning for 800,000 to 900,000 people to attend the ceremony.
The Supreme Court is set to decide on whether disabled travellers are legally entitled to have priority use of wheelchair spaces on buses.