Full details of all the activities, special appearances and promotions going on at each of the four locations, in addition to directions, can be found at http://dickssportinggoodsonline.com/grand_open/oklahoma-city/.Highlights for each store include: SHOPS AT QUAIL SPRINGS(14200 N. Pennsylvania Avenue, Oklahoma City, OK)On Saturday, legendary Oklahoma running back Billy Sims will be in store meeting and greeting customers.* During his football career at the University of Oklahoma, Sims was a two-time consensus All-American and 1978 Heisman Trophy recipient. He was selected by the Detroit Lions with the first overall pick in the 1980 NFL Draft. For more details on Sims' appearance times and locations, visit DICK'S Oklahoma City Grand Opening webpage. FRITTS FARM (760 SW 19th Street, Moore, OK)On Sunday, former Detroit Lions running back and Oklahoma State University alum Barry Sanders will be in store meeting and greeting customers from 1:00 p.m. to 3:00 p.m.**. In 1988, in what has been called the greatest individual season in college football history, Sanders shattered record books with 2,628 yards rushing, 3,248 total yards, 234 points and 39 touchdowns. Sanders also became a Heisman Trophy winner in 1988. He continued to shatter records during his NFL career with the Lions and was elected into the Football Hall of Fame in 2004. WESTGATE MARKETPLACE(6601 SW 3rd Street, Oklahoma City, OK)Sunday's schedule will feature a special in-store appearance by former Buffalo Bills running back and Oklahoma State University alum Thurman Thomas from 11:00 a.m. to 1:00 p.m.*** During his celebrated career, Thomas earned the distinction of becoming a five-time Pro Bowl selection, four-time AFC Champion, three-time first-team All-Pro selection, as well as several other accolades. Thomas was elected to the Pro Football Hall of Fame in 2007 and into the College Football Hall of Fame in 2008. TOWN CENTER PLAZA(7095 SE 29th Street, Midwest City, OK)Oklahoma City Thunder basketball player Serge Ibaka will be making a special in-store appearance on Saturday from 6:00 p.m. to 8:00 p.m.**** Arguably one of the best defenders in the league, Ibaka earned the nickname "Iblocka" from teammates for his exceptional rebounding and defensive skills. In 2012, Ibaka became the first player in Oklahoma City Thunder franchise history to record a triple-double with double-digit blocks. For full appearance details and times, please check the DICK'S Oklahoma City Grand Opening website.