Chelsea's four-match winning run in the Barclays Premier League ground to a spectacular halt as struggling west London rivals QPR claimed a 1-0 win - their first victory at Stamford Bridge for two decades.
Shaun Wright-Phillips, an early substitute for the injured Junior Hoilett, struck a brilliant 78th-minute winner against the club he left in 2008 to further erode the Blues' fading title hopes.
Wright-Phillips' second goal of the season topped a fine performance from QPR that was a vast improvement on Sunday's tame home surrender to Liverpool.
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