Liverpool defender Jamie Carragher always expected tonight's opponents Manchester City to become title challengers.
Carragher accepts it was inevitable they would bring increased competition in the battle for the top four.
"Obviously they have raised the standard for Champions League qualification with the players they have brought in," said the 33-year-old.
"I am sure it won't stop as there will be more coming in the summer - but that is up to them.
"We only play Man City twice in a season so whatever they do is up to them.
"In the games we play against them we have to do well this season, next season and in the years to come because they are going to prove a difficult team to stop if they carry on spending that type of money.
"But we only play them twice and it is what we do, we will look after what we do at this club."
