Goldberg won the title at Fastlane 2017 when he defeated Kevin Ownes. Before that, Lesnar challenged Goldberg to a fight for the last time at WrestleMania 2017 which Goldberg accepted.
Goldberg has already defeated Lesnar at WrestleMania. Apart from that, Lesnar was brutally defeated at Survivor Series and then at Royal Rumble 2017, when Goldberg eliminated Lesnar from the ring.
This would be 2-0 for Lesnar if he gets defeated again by Goldberg.