I'm not sure if Liverpool's present squad can stay at the top of the Premier League table before their key players return from injury. Even without key players, Liverpool was supposed to win against Luton Town yesterday because Luton Town only won five of their 25 matches played in the Premier League this season.
Liverpool did win when playing at home when they hosted Luton Town because that team was a weak team that Liverpool could easily face. And to be able to stay at the top of the standings until the end of this season, Liverpool only needs to win and not lose or hope to lose to Arsenal and Manchester City, both of which are very serious competitors for Liverpool this season. However, if we look at several Liverpool players who are still injured at the moment, of course some people really doubt that Liverpool will be able to survive for long at the top of the standings.