In the 14th round of the Premier League, Chelsea lost 1-3 away to Leeds United, a result that helped the latter escape the relegation zone.

The result of this match was particularly surprising, as last week Chelsea had first secured a dominant 3-0 victory at home against La Liga leaders Barcelona, and then managed a 1-1 draw in the league against table-toppers Arsenal, despite playing with 10 men.

This was not the first time this season that Chelsea had lost to a lower-ranked opponent. They had previously lost at home to Sunderland and Brighton and drew with Qarabağ in the Champions League.

Performing strongly against top teams, but poorly against weaker teams—how do you evaluate the level of this Chelsea side?