For as much excitement as there is to see John Mateer or Kip Lewis on Owen Field — not on live television, of course — Saturday's Spring Game is the first chance Sooner fans will have to see a few dozen new faces. Spring games are a light appetizer for what’s coming in five months, but they offer little in terms of real takeaways. They’re primarily shaped by health and safety concerns. But newcomers, particularly true freshmen, can often be true attractions for fans. In the transfer portal era, new faces with college football experience can also draw interest. How do these new faces look in their full uniform, do they need a year in the weight room before you lay any expectations at their feet? Do the expereinced transfers look like immediate plug-and-play types? Here are a few new faces to watch for on Saturday. Oklahoma defensive end Jake Kreul participates in a drill during spring practice.…