United Kingdom, Oct. 15 -- Zara Tindall experiences "mother's guilt" trying to combine parenthood with her sporting career.

The equestrian - who is the daughter of Princess Anne and her ex-husband, Captain Mark Phillips - has Mia, 12, Lena, eight, and five-year-old Lucas with husband Mike Tindall, and the former rugby player does his best to offer his support when his wife is focused on a competition.

He told the Talk Horse podcast: "You forget sometimes life is hard when kids come along and you try to still compete.

"Fortunately, when Mia came along, that was my last year, so I haven't been a professional athlete whilst the kids have been around.

"You've got to try and play a support role at the same time because mums do have mother'...