Chelsea face being left in 'no man's land' in the Premier League title race if Thomas Tuchel fails to arrest their worrying slide, says former Blues defender Frank Leboeuf.
The European champions have seen their form plummet in recent weeks, with 1-1 draws at home to Manchester United and Everton and a 3-2 defeat away at West Ham putting a dent in their title bid.
Tuchel's men, who were top of the table as recently as a fortnight ago, now trail leaders Manchester City by four points, while Liverpool are three points away in second.