Theo Walcott maintains when Arsenal get it right, they can "kill" any of their rivals for the Premier League title - but accepts the Gunners cannot afford any more off days.
Arsene Wenger's side once again came up short when it really mattered as Chelsea returned to the top of the table following a 2-0 win at Stamford Bridge, with Didier Drogba scoring both goals.
Afterwards, Wenger congratulated Chelsea on their efficiency, while also taking a sly dig by claiming "we didn't get a demonstration of football" from Carlo Ancelotti's men.
The Blues are now nine points ahead of the third-placed Gunners, who had been comprehensively beaten by Manchester United in front of their own fans the previous weekend.
Walcott, making a rare start following a campaign blighted by injury setbacks, believes a clinical edge is all that is missing between the teams at the top - and maintained Arsenal can get it right when Liverpool come to the Emirates Stadium on Wednesday night.
"We dominated the game, but Chelsea took their chances and you have got to be decisive," Walcott said.
"We need to learn from that and then push on for the Liverpool game, because if we keep the ball like we did against Chelsea, but create more chances, we can kill anyone.
"However, everyone just remembers the results, and that is what we have to do - win these games and not lie down in the big matches."
Walcott told Arsenal TV Online: "We have to believe we are always in the title race, no matter where we are in the league.
"We would like to have more points than we had from these last few games, but now we just have to get the result against Liverpool.
"Every Premier League game is hard, and other teams can drop points, but we just need to concentrate on ourselves.
"If we perform like we did at Chelsea, but take our chances, then we can beat anyone on our day."
Walcott, 20, has seem his impact limited in what could be a big season for the England forward, with the World Cup in the summer.
"I have been training well and now just want to get back in the first team," he said.
"The fitness is coming and hopefully if I can turn my training into performances, then I can stay in the starting line-up."
The Gunners may have already been written off as title contenders, but Wenger will take some solace from the way his men responded to a crushing 3-0 home defeat by Chelsea at the end of November by embarking on a 10-match unbeaten run which saw them briefly top the table.
Full-back Gael Clichy is also refusing to give up on the title.
"It is even more complicated now to win the league, but we have to keep fighting until the end," said the French defender.
"We have seen since the start of the season, everyone can drop points against anyone.
"It is not going to be easy, but it is not finished.
"We were 11 points behind and came back so we have to hope they drop points and make sure we don't drop any points."
Clichy added: "When you want to be the best, after every defeat you have to ask the right questions to yourself and the team. You have to go again and dig in.
"That is what we are going to start doing again in training because it is only with hard work and a bit of luck that things can happen. Maybe then we can go somewhere."