ask yourself this, would having lucas all season and suarez for 8 extra games have made up the 17 points needed to make us challenge for 4th place? hmmm...I don't know.
Probably not. But Lucas played as a monster and balanced the middle very well. Loosing the engine room is critical. The alternatives there were nowhere near good enough (which of course can be blamed at someone). The game before he got injured he bossed man City totally around almost on his own. A very critical moment for us.
Suarez... it was not the games alone. it was all the energy and bullshit around it which clearly killed another momentum for us.
These two happening alone don't count for exactly 17 points, but they are definately setting premises for the rest of the season. Would we lost form at some time anyway? Yes, everyone does.. united slipping 8 crucial points in the last month is a good example of that. But could we easier have got things back on track with these two? Hmmm I don't know.