obstruction

[yankeesfan]

a runner was caught in a run down between first and second. after several throws back and forth, the first baseman was about 4 feet in front of first base without the ball and the runner basically ran into him tgrying to get back to first. he would of easily of been safe gettting back to first because they screwed up the run down. the runner had started from first base on this play. under fed rules would he get second base, even though he was going back to first?