He said: "I am confident about my squad, and I am happy that we have the best squad since I arrived at Anfield. But the key is not to say we will win the title, because the Premier League is now the best - and most difficult - in Europe.
"The standard has gone up so much since I arrived here. Back then, there were good players in the league, but Spain, Italy and Germany all signed some of the best players in the world.
"Now, everybody wants to come here, and that quality is amazing.
"Just look at the Champions League. Three of the last four were from England, and Arsenal played really well in the competition too.
"So you have to get past the three best teams in Europe to win the Premier League.
"That will not be easy, but it makes for an incredible league. We have improved and progressed every year since I arrived, but look at the history of the league.
"We got 82 points which was a record for Liverpool, and that has allowed us only to finish third. The standard has risen massively, and we have had to work to keep up."