Oklahoma WR Dede Westbrook enjoyed a sterling October

After stumbling out of the gate, the Sooners have been on a tear thanks in large part to the amazing show wide receiver Dede Westbrook has put on in the past five games. (0:53)NORMAN, Okla. — Dede Westbrook showed up to Oklahoma’s stadium Saturday donning the NFL jersey of the player few believed he could replace. Then, with former Sooners All-American and first-year New York Giants receiver Sterling Shepard watching from the sidelines, Westbrook delivered yet another dazzling display, capping an October for the Oklahoma ages in a month unmatched by any other receiver — and perhaps player — in college football this season.

“The dude’s a freak,” said quarterback Baker Mayfield, who suddenly…