Frank Lampard is convinced Chelsea can challenge for the Premier League title again with Jose Mourinho in charge. Lampard believes the imminent return of the Special One will provide the drive and determination which has been missing.

He admitted: "Our league consistency hasn't been good enough these last two years. That's something we must address this summer.

"City and United have raised the bar and we need to get back to that battering ram mentality we had before, winning games 1-0 even when we're not at our best.

"We need to be able to close ranks and grind out results again as too many times in recent years we've had a bad month when everything has dropped away.

"When we won the title under Jose we were criticised for the fact we were so dogged but we certainly need to get some of that mentality back in our game.

"It doesn't mean taking away the beautiful football entirely because we have to cater for the creative players we have and get them into our team. But there has to be a happy medium because challenging for the league again next season is a huge priority and if Jose does come back it will be a huge lift for this club.

"He's the greatest manager in Chelsea's history and changed the whole mentality of the place to turn us into a winning club.

"The fans idolise him and those players who haven't worked with him before will soon understand that he'll come in and give them the extra edge that will turn us back into a consistent force."