Minnesota Vikings wide receiver Rondale Moore suffered a "pretty significant" left knee injury while returning a punt during the second quarter of Saturday's preseason matchup vs. the Houston Texans,

Key return man Rondale Moore suffers significant injury in preseason opener for Vikings and may be lost for long period

After Saturday’s preseason opener, Minnesota coach Kevin O’Connell told reporters that Moore suffered a “ pretty significant ” injury to his left knee during a first-half punt return.