49ers vs. Cowboys injury report: 2 starting corners continue to miss practice

San Francisco’s starting cornerbacks Deommodore Lenoir and Renardo Green have missed practice with foot and back injuries as the 49ers prepare to face the Dallas Cowboys on Sunday at AT&T Stadium. Coach Kyle Shanahan said both could still play without practicing, though he would prefer they take part in Friday’s session. The pair may have participated in a closed walkthrough Thursday, according to ESPN’s Nick Wagoner.