For the third time this season, Chelsea were forced to a 1-1 draw at Stamford bridge and in all three matches, they scored first but failed to hold on – against Manchester City, Barnsley and Southampton on Sunday...Read more at http://.com/news/1526/a-tired-chelsea-and-the-3-reasons-why-they-will-not-win-a-treble

Fatigue as set in. Mourinho always using d winning team. Poor rotation n substitution skills

Fatigue has it's own, bt it is nt the main tin. If you check that of burnley nd southampton, chelsea were little bit unlucky as many of there chances were either saved, blocked or hit the post. Unlike b4 when they score wt the few chances they create. Even the southampton coach said that "to get a good result against chelsea, you need a little bit of luck."

We are getting to the tail end of the season where accumulated fatigue will play a role$Mou's failure of rotating 'em guys also is playing a role also.

only Hazard and Courtois are making significant efforts lately. the rest players are there to complete the required number of players (11) on the pitch.