Willis says Rattler has ‘Baker Mayfield’ energy

OU's Spencer Rattler (7) carries the ball past South Dakota's Mike Johnson (2) in the fourth quarter of the Sooners' win last season in Norman. [Nate Billings/The Oklahoman]Spencer Rattler’s physical strengths were known commodities going into this season, OU H-back Brayden Willis said Thursday.

“We all know about the intangibles, the arm strength and everything like that,” Willis said.

But the way he’s taken charge of things, especially since being named the starting quarterback earlier this week, has been the biggest eye-opening area of growth Willis has seen in the redshirt freshman.

“He’s a great leader and he’s done a great job getting us ready to go day-in and day-out, bringing energy to…