Right before playing their missing game against Brentford, Manchester City are going to host Chelsea in two days. Winning this game is really important for the Manchester side. Because as long as they keep up with Liverpool until the Brentford game they will have a huge opportunity to take the lead.
I don't expect Liverpool to lose points against Brentford either. But their hands are tied about keeping the lead on one hand as I said. They shouldn't have lost to Arsenal.

From now on they will need to win as many games as possible until facing Manchester City in a critical game for the title.