DP/DEFO Batting Order Problem

[IRISHMAFIA]

Originally posted by SamNVa
Team A only has 10 players, but decides to use a DP anyway. DP-Smith is the leadoff hitter and her counterpart DEFO-Jones is playing 3rd base. In the 3rd inning, F9 who was batting ninth makes the 3rd out and sprains her ankle during the lay and has to leave the game. DP-Smith goes in to play right field; all is good so far. Now in the fifth inning, DEFO-Jones comes to bat following the eighth batter with 2 outs. Neither the umpire nor either of the coaches realize that the automatic 3rd out should have been taken. DEFO-Jones strikes out for the apparent 3rd out and the teams change sides. In the sixth inningm DP-Smith comes to the plate and walks Before a pitch to the next batter Team B's coach approaches the umpire and points out the fact that DEFO-Jones made the last out during the last inning and DP-Smith lead off this inning.

Nope, cannot be BOO as that would have had to be brought to the umpire's attention in the offensive half of the previous inning. Unless Jones had reported as a substitute batter for the DP, she is an illegal batter for F9.

So here's the question: Is this a simple BOO situation or is DEFO-Jones disqualified as an illegal substitute since she apparently batted for the injured F9 in the previous inning?

SamC

Illegal batter. (4.7.B) Jones is now riding the pine.