Juliano Belletti struck another stunning long-range goal as Chelsea scored four times inside 15 second-half minutes en-route to a 5-0 victory at a woeful Middlesbrough.
The Brazilian, with a reputation for shooting from outrageous distances, thumped home a 30-metre effort five minutes into the second half of a one-sided affair that Chelsea were already leading through Salomon Kalou's goal.
Kalou added a deflected third soon after Belletti's strike following a neat knock-back by Florent Malouda, Frank Lampard finished off another superb build-up with a diving header and Malouda tapped in the fifth after Nicolas Anelka hit the post.
Chelsea lead the standings with 20 points, three clear of Liverpool, who host Wigan Athletic later on today. The top two meet at Stamford Bridge next week.