Arsenal kept up the pressure on Manchester City and Liverpool with a mammoth win over Sheffield United last night. The Gunners have been in rich goal-scoring form recently, making it 21 goals from their past four Premier League games with a 6-0 victory on Monday. That put them back to within a point of City and two of Liverpool at the top of the table. And in quotes from The Independent after the game, midfielder Declan Rice praised the consistency of both of the sides above Arsenal. “I think if you look at the two other teams at the top, they don’t look like they are going to slip up anytime …