United Kingdom, Aug. 3 -- Zara and Mike Tindall will be a huge "support" for Prince William when he becomes King.

The 43-year-old Prince of Wales is next in line to the British throne after his father King Charles and royal insiders believe he could turn to his cousin Zara, 44, and her husband Mike, 46, to help him and his wife Catherine, Princess of Wales, with his duties.

Royal commentator Jennie Bond told OK! Magazine: "As the years go by, I think they'll be a highly valued support for William when the time comes for him to be King. They are both very close to William and if he calls on them, they will definitely agree."

It has been suggested that accomplished equestrian Zara could take on a role running royal horse racing, somethin...