How is the relationship between Yograj and Yuvraj Singh?

Bibi Rajni is a Punjabi film in which Roopi Gill, Yograj Singh, Gurpreet Ghuggi, Jass Bajwa are going to be seen. Recently an interview was held with the cast of the movie in which they told about the film. During this, Yograj Singh talked about his son Yuvraj Singh. He told that when Yuvraj had cancer, he got a call and he motivated Yuvraj a lot. He told that at that time he had told Yuvraj to come home only after winning the World Cup. Along with this, he also told about his personality. How is the relationship between Yograj and Yuvraj Singh?