The Sydney 7s will be bigger than ever in 2018 with the tournament to kick off on Australia Day for three days of explosive women's and men's rugby action.

In a world first for the Sevens World Series, the men's and women's tournaments will be completely integrated with both tournaments held across three days on the iconic grounds of Allianz Stadium, Sydney. Both the women's and men's finals will be on Sunday 28 January as the best of the 12 women's teams and 16 men's teams battle it out to be crowned champions.

Runaway: Lachie Anderson breaks away against New Zealand during this year's tournament. Credit:Getty Images

After 75,412 fans enjoyed the three-day 2017 HSBC Sydney 7s, the carnival atmosphere will reach new heights in 2018 with the tournament to be held over a long weekend for the first time, making it the perfect sporting event for the whole family, whether they're from Sydney or travelling to the Harbour City.

For the Australian Men's and Women's Sevens sides, this will be an opportunity to take on the best in the world as they look to defend their home soil, just months away from the 2018 Commonwealth Games on the Gold Coast.