KANSAS CITY, Mo. — When he takes the field at Allegiant Stadium for Super Bowl LVIII, Chiefs quarterback Patrick Mahomes will make NFL history. No quarterback has ever started four Super Bowls before the age of 30. But Mahomes will do it when the Chiefs take on the 49ers in Las Vegas. Mahomes’ greatness has been discussed by many people, but I thought it would be interesting to hear what former quarterbacks who have started in the Super Bowl have to say. Here are five of them on Mahomes. Dan Marino— Former Dolphins quarterback — Started in Super Bowl XIX Marino talked about Mahomes in an inter…