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Are they minor missteps of people limbering up for greatness as they get used to the job?

To get your Q&A muscles limbered up in preparation, sign up for our Essential California newsletter, and you’ll find a link to the quiz of the week at the bottom of each Saturday’s newsletter.

Ninety runners from all over the world are limbering up in a deserted skatepark on the beachfront, 50m from the Pacific Ocean.

They limber up their lips with a tongue twister.

There is a buzz of excitement back stage as the dancers limber up ahead of the show at the Royal Albert Hall, a distinctive red-brick circular building with a domed roof in London's Kensington district.