In comparison to Norris, 18, Sainz (24-years-old) is the experienced out of the pair and Norris may look towards the Spaniard for inspiration in his rookie season on the F1 grid.
"It is strange to call myself a veteran when I am 24-years-old," Sainz said at the McLaren partnership announcement with One Plus in London.
"It is good for my career that I am considered an experienced and solid driver, which McLaren considers me to be. I feel ready to lead the team during these two years of my contract."
Sainz went on to reveal how he is coming to grips with his new team in Woking.
"I want to keep moving forward, so I go to the factory a couple of days a week," Sainz admitted. "I like to know what is happening and to be in contact with the people here.
"I see everyone there motivated and eager for next year. After a difficult year, they have learned from the mistakes. I see everyone impatient for next season to start, this positive spirit is spreading in the factory and also, it is infecting me!"