Orlando is not going to overtake us as long as we beat Philly. People here are forgetting Orlando only have two games left after Montreal.
So, TFC and ORL win: they are 5 points back with two games left, meaning we only need one point in our last 3 games to stay ahead of them.
However if MTL gets a draw then they'd be three points back with a game in hand. They have a tougher schedule, but with the extra game it's not inconceivable they could overtake us. Especially with that last game in Montreal.
I know everyone wants to clinch as soon as possible, but in this case Orlando is nothing to be worried about and we should be hoping for Montreal (and DC/NE/Columbus) to drop as many points as possible.