Jennifer Garner sparked a huge reaction from fans on Saturday when she posted a rare photo of her lookalike sisters.

The 13 Going on 30 actress delighted fans with the family snapshot, with many commenting on their incredible similarities.

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Posting a heartfelt tribute to her "two favourite people", Jennifer wrote: "As a little kid, I was tortured by my sisters’ birthdays, as their celebrations were within two weeks of each other and right after Christmas. Poor me! No one pays any attention!! (Jan Brady)