Well, we're not there yet. Game 5 is big for the Knicks, but it's vital for the Cs. Now, if the Celtics force game 6, the Knicks could feel that pressure. But even in that case, they could still lose that game and close the series at home. That's what happens when you're down 0-3 in a series.
2010 ECF was huge for the Celtics, and a big reason (with Perk injury in game 6 and Joey "MVP" Crawford in game 7) why the Celtics didn't win #18 that year. After 3-0, we heard about brooms, and then we lost games 4 and 5, and Quisy, Baby, KG and Sheed took a physical beating on those extra games (Quisy out for the year, Davis suffered a concussion, KG and Sheed back problems). The Knicks, though, have been respectful, and they tried hard on Sunday to close the series and actually sweep the Cs. The 2010 Cs were complacent in game 4, their superiority vs that Magic team was huge, while Knicks and Celtics are not that far away, it's just the Knicks executing better, defending harder and playing as a real team, unlike our preseason-like Celtics.
If the Celtics can start playing Celtic ball, though, anything's possible. It's unlikely, but if any team can do it, it's the Celtics.
