VIDEO: Jess cautions on mission to Moscow

Jessica Ennis-Hill insists she will only compete at next month’s World Championships if she is fit enough to challenge for gold.

The Olympic heptathlon champion made her long-awaited comeback from an ankle injury at a low-key meeting in Loughborough last night, setting a personal best of 48.33 metres in the javelin and winning the long jump with 6.26m.

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