Santa Ana (Calif.) Mater Dei four-star wide receiver Marcus Harris told On3’s Chad Simmons earlier this week he was planning to focus on three schools going forward: Georgia, Oregon and UCLA. But another program has emerged in the race to land Harris, who will take an official visit to Oklahoma this weekend with the Sooners. Harris logged an official visit to Georgia last month and took a surprise OV to UCLA last weekend. He was set to see Oregon this weekend and Texas later this month, but the only official left on his schedule for now is a trip to Norman. The Sooners offered Harris last summ…