Brentford earn replay at Chelsea
The Spain striker curled in a superb finish in the 83rd minute to earn the European champions a fourth-round replay at Stamford Bridge and ensure they avoided becoming the latest Premier League failure in the world's oldest knockout football competition.
On Saturday, Norwich was humbled by non-league team Luton and Queens Park Rangers was eliminated by third-tier MK Dons.
Chelsea, which was outplayed in the first half at Griffin Park, fell behind twice to its rival from west London, with Oscar grabbing the first equalizer in the 55th.
Tottenham visits Leeds and Liverpool plays third-tier Oldham later Sunday.