The model has sparked concerns over her health in recent months after she was spotted using a wheelchair on various occasions and being assisted out of her friend and singer Madonna's house following a night out last week.

"It's become well known in the industry that she's been suffering. There have been a lot of whispers about what's wrong with her, given that she has even needed a wheelchair at certain points," a source said.

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However, a close friend of Campbell's is adamant her injury has been brought on by her globe-trotting career and she'll be back to "normal" after some much needed rest.

"It is only a light injury, aggravated by travel, work and exercise. She is all good and will be out and about as normal over the next few days," the source added.