1028 days left

You're playing in the semi-final of a grand slam – with the daunting prospect of facing Rafael Nadal on his favourite surface the end prize, and then a ...

The group claimed on Twitter that 22-year-old Alizée was the woman who entered the Phillipe Chatrier court, wearing the t-shirt with ‘We Have 2018 days left’ on it. The second Men’s semi-final at Roland Garros was briefly suspended as a protester entered the court wearing a t-shirt with ‘We Have 1028 days left’ on it. However, she was wearing a t-shirt saying ‘We Have 1028 days left’? What does this mean and which group has claimed responsibility for the stunt?