Make the Call!!

Defender D1 is on the sideline with one foot touching the out of bounds line. O1 dribbles right over D1 knocking him/her to the floor. Official calls this a player control foul! Is this the correct call?

Yes, you are not in a legal guarding postion if you do not have both feet in bounds. Not only does D1 get all the contact they also get called for  a blocking foul.