Sweeper-Keeper Behind a High Line

Your team defends with a high line to compress the pitch. The opposition wins the ball in midfield and clips an early ball over the top into the large space behind your defenders. Their striker and your nearest centre-back are both turning to chase, but the striker has a half-yard. You are positioned around the edge of your penalty area. You will not beat the striker to it inside your area, but you can reach it first if you come outside the box. The ball is running towards the corner of the box.