John Terry insists Manchester United are "not invincible" and could yet bottle it in the Barclays Premier League title race, starting against his Chelsea side on Tuesday.
The Blues have all but surrendered their mantle of English champions, having slipped back to fifth place in the table, 12 points behind long-time leaders United.
But captain Terry has vowed to fight to the bitter end and reckons beating United at Stamford Bridge next week would help sow the seeds of doubt in the minds of their perennial title rivals.
"It's been done. Man United did it to Newcastle many years ago," the England defender said.
"It's possible and a little bit of pressure."