Due to launch at this summer’s rearranged 2020 Uefa European Championship, the deal will run for at least two football seasons, including covering the 2022 World Cup.
The partnership will include a global above-the-line creative campaign, featuring LiveScore’s first TV spot and a wider digital initiative.
Ronaldo’s image will also feature across LiveScore’s digital inventory and content.
“LiveScore and I are connected by a drive to be the greatest at what we do every single day. I cannot wait to unite our combined audiences of football fans with amazing content, moments and goals in the next exciting stage of my career,” Ronaldo said.
LiveScore managing director Ric Leask added: “There is simply no bigger sportsperson — past or present — than Cristiano Ronaldo, who continues to captivate fans around the world with his brilliance on the pitch.
“Combined with the fact that his game is built on speed, reliability and simplicity, key strengths also synonymous with the LiveScore brand, there could be no more authentic and better fit for our business.”