Texas' Malik Jefferson (46) and DeShon Elliott, right, help take down San Jose State's Tyler Nevens on Sept. 9. No. 4&nbsp;USC&nbsp;(2-0) vs.&nbsp;Texas&nbsp;(1-1)5:30 p.m. Saturday at the&nbsp;ColiseumTV: FoxRadio: 710Marquee matchupUSC running backs Ronald Jones II and Stephen Carr against Texas linebacker Malik Jefferson: Jones and Carr have been perhaps college football&rsquo;s best running back duo. They&rsquo;ve been difficult to tackle: Of Jones&rsquo; 275 rushing yards, 213 have come after contact, according to Trojans running backs coach Deland McCullough. Jefferson was a freshman All-American two seasons ago, an All-Big 12&nbsp;selection last season and is Texas&rsquo; best defender.