At his Monday press conference, Texas head football coach Steve Sarkisian broke the news nobody wanted to hear — talented safety Derek Williams will have surgery and miss the remainder of the year after being injured Saturday at the Cotton Bowl. Sark did not disclose the exact injury. [Join Inside Texas TODAY and get 7 days for just ONE DOLLAR!] Williams, a sophomore from New Iberia (La.), was a key figure in Texas’ safety rotation both this year and last. He was having a strong game against OU before being injured on kickoff coverage. Though Texas is talented at safety, the room is now notice…