This is specifically due to him playing with two of his best friends in Reilly Opelka and Frances Tiafoe; he believes that it will be the start of something which will go on for years in terms of them playing with each other so he is looking forward to it.
"My first Davis Cup, it's definitely cool to be doing it with Frances and Reilly – two of my best friends, two young guys,” Fritz told the Davis Cup Finals.
“It's great to have this young group that's coming in the team and that's going to be important to the team. I'm just excited to get this thing started because it's going to be like this for a long time."
https://twitter.com/DavisCupFinals/status/1186321039099420672?s=20