Liverpool new boy Albert Riera knows the club's rise to the Barclays Premier League summit will bring growing pressure for the Anfield men.
Winger Riera, already a big hit after only 10 games following his £8million summer move from Espanyol, thinks Liverpool will become the scalp everyone wants with Tottenham, reborn under new boss Harry Redknapp, will provide the next test at White Hart Lane on Saturday.
"We have to concentrate now even more, clubs will know that we are top and they will want to beat us even more," said Riera.
"Before last weekend, everyone was talking about Chelsea and the fact that they were top of the league and unbeaten so far this season.
"But we are now in the same situation and under that sort of pressure. Maybe, though, people now know that we are a good team also and that we want to continue at the top of the league.
"But if this is to happen we know we have to keep on working hard in games and in training and doing the same things that have helped us get to the position we are in right now.
"We know it will be tough because the Premier League is very competitive and you have to work hard in every single game otherwise you can come unstuck."
Riera was only used as a late substitute in Wednesday's 1-0 win over Portsmouth, having picked up a minor muscle injury against Chelsea last weekend.
But he is expected to return to the front line at Spurs, as are Daniel Agger, Javier Mascherano and Robbie Keane, who were all rested on the bench in midweek.
Fernando Torres could also return after his hamstring injury, but Liverpool may well hold him back to face Atletico Madrid in the Champions League on Tuesday.
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