Omari Thomas issued an apology on social media on Sunday after video showed him pushing an Arkansas fan to the ground as Razorback students stormed the field Saturday night after the 19-14 win over No. 4 Tennessee. Arkansas students stormed the field near the visiting team tunnel at Donald W. Reynolds Razorback Stadium as Tennessee players were in the corner of the end zone going toward the locker room after the loss. Video showed Thomas, the fifth-year senior Tennessee defensive tackle, turning and shoving a male Arkansas fan, who went crashing into a female as both went to the ground. “I apo…