Dunham's Sports, one of the nation's largest sporting goods chains, will hold its grand opening this weekend. The ribbon cutting is set for Friday at 9 a.m. at the Northside Drive location in the Southern Square Shopping Center near Kmart. Store hours are Monday-Saturday, 9 a.m. to 9:30 p.m. and Sunday, 10 a.m. to 6 p.m. The first 100 adults in line on Friday will receive a Dunham's Sports t-shirt.