But Pearson wasted no time in taking a look at the dismissal on film following the game, and he felt the former Liverpool man was unlucky on two counts.
He said: "I don't think the foul was intentional because Jack got a nasty bobble as the ball reached him and it's debatable whether he was the last man.
"We'll ask the ref to look at it and hopefully he'll agree the decision was harsh.
"It left us with a backs-to-the-wall situation. It wasn't the prettiest of games, but in terms of dealing with what was thrown at us I thought the players were outstanding."