With Chelsea sitting pretty at the top of the Premier League table, holding a six-point advantage and a game in hand, Jose Mourinho’s men look to be in an unassailable position.

Closest rivals Manchester City have been unconvincing of late, while Arsenal and Manchester United are still theoretically in the hunt for an unlikely title triumph.

Although the Blues are overwhelming favourites to finish first, and it will take a capitulation of sizeable proportions to see anyone else leapfrog them, it is not over until the fat lady sings.

Here are four games that they could drop points in that could (maybe) cost them the title...

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Home vs Manchester United - Saturday, April 18

Louis van Gaal’s men visit Stamford Bridge next month and will prove a difficult opponent given their recent run of excellent form.

The Old Trafford outfit have looked like a much more dangerous opponent of late, with a number of their star players starting to fire them back towards Champions League football.

With United potentially needing a result in this fixture to maintain their push for a top-four place, it is not inconceivable to suggest that an away win could be on the cards - especially given that Van Gaal’s men left Anfield with three points on Sunday.

Away vs Arsenal, Sunday, April 26

The Gunners have also started to find their best form at the business end of the campaign, with a streak of wins on home soil seeing Arsene Wenger’s men propelled to third place.

The north London side’s record against the biggest teams in English football has traditionally not been good in recent years; as such this is something that must improve if Arsenal are to be realistic title challengers.

The chance to close the gap at the top by three further points will be a real motivation for Wenger’s charges, who will want revenge after suffering some significant defeats against their London rivals in recent campaigns.

Home vs Liverpool, Saturday, May 9

Liverpool’s chances of qualifying for the Champions League took a hammer blow against rivals United at the weekend and Brendan Rodgers’ men cannot afford to drop many more points (if any) if a top-four place is to be secured for the second consecutive season.

With only three games remaining when Chelsea host the Reds, the Merseysiders could arrive in West London knowing that they must win to have any chance of achieving their goals this season.

A number of bad-tempered clashes between the sides in the Capital One Cup semi-finals has set the tone for their Premier League meeting.

Home vs Sunderland, Sunday, May 24

On paper, most punters would have a home win for the Stamford Bridge club on their coupon all day long.

However, with this the last game of the season and the Wearside outfit looking extremely likely to be caught up in a relegation scrap, the game may not be as routine as the home faithful would hope.

A desperate side that simply must win (or not get beat) to avoid relegation is a tough opponent in a one-off game for anyone; if Dick Advocaat’s men are in this situation they would surely throw everything at their opponents.

Most people expected Chelsea to beat Sunderland at home this time last year, but a comeback 2-1 away victory caused quite the upset - the visitors may well have to repeat the heroics this time round to salvage their Premier League status.