Manchester City winger David Silva feels they can go some way to winning the title with victory at Chelsea tonight.
City - undefeated in the league - are upset that Napoli beat them to second place in Group A and a place in the Champions League knockout stages.
Silva said: "To win at Chelsea and to go 13 points clear will give us an advantage and will provide a big blow in the Premier League against a direct rival.
"After being knocked out of the Champions League, the best way to boost our morale is to win at Stamford Bridge - and with this objective, we go to London.
"If we win at Stamford Bridge, we will pass a big test for our dream of winning the Premier League title.
"The City dressing room was affected by the elimination from the Champions League.
"It was painful but perhaps the key game was away to Napoli.
"We were excited about being in the Champions League but now the Europa League is another challenge."