You must also take into account that both Liverpool and Manchester City can make mistakes later on, it is not a fact that in case of a defeat or draw by arsenal, MC and Liverpool will reach the end of the season without defeat. Liverpool have a match against MU next, I think it will be a tough one. Manchester City have a match with Tottenham (after arsenal). Asrenal have a match with MU and Tottenham. You see, everywhere you look, you can make mistakes in matches against strong opponents.
This is exactly what i was saying the other day, this game between them both is actually a game that must be a win for either of them as a win will actually boost the confidence of the winning club going further in the season but this doesn't mean a point dropped in this game means the club has lost the race already there is still more than five games to go after that and most of the oppositions will be in dare need of points and could take away points from any of this clubs, so personally i think the race will be alive on till the end of the season. at this point the clubs needs to treat each game as important as the next one and never under-estimate any of the oppositions at this time