Some scouts question whether he might have more of a guard 's blocky frame .
Oher is expected to be drafted in the first round , but many observers rank him fourth among the four elite offensive - tackle prospects in this draft .
Some scouts question whether Oher might have more of a guard 's blocky frame .
Oher is expected to be drafted in the first round , but many observers rank him fourth among the four elite offensive - tackle prospects in this draft .