Former Chelsea defender Antonio Rudiger ensured his former side were dealt a shocking record as he returned to face the Blues.
The Real Madrid man was a second half substitute in the Champions League quarter-final tie between Madrid and Chelsea, slotting into central defence, where he made over 200 appearances for the Blues.
With Madrid 2-0 up in the game, Chelsea attacked with Marc Cucurella's deflected cross finding its way through to mason Mount after Eder Militao slipped.
Mount appeared destined to score, but Rudiger sprinted from his position to make a vital block and ensure his side kept their clean sheet in tact.
Chelsea's latest blank means the club have now failed to score for four games, which last happened 30 years ago in 1993.
Chelsea have now played over five-and-a-half hours of football since Kai Havertz netted a penalty against Everton in the Premier League on March 18, their last goal.
They went to the Bernabeau with little expectation, but the manner of the defeat will frustrate new manager Frank Lampard.
Lampard again changed formation for Chelsea in the game, opting for the wing-back system Graham Potter heavily favoured during his spell in charge, but the Blues got little change out of the defending champions.
Wing-backs Reece James and Ben Chilwell have often been dubbed Chelsea's most important players, but Chilwell was sent off while James disappointed.
Lampard opted for three central midfielders and two forwards - Raheem Sterling and Joao Felix - but both were hooked in the second half as the latest bid to find some form in front of goal failed.
Beatsbybox
497
That block was as good as scoring a goal. Rudiger is a beast!
badcelmopr
326
Chelsea fans were busy saying Reece James will pocket Vin Jr.i can't find him on the pitch.
AbdulZaks007
272
i used 10mb to watch Chelsea,s goals in their Last 4 games. Now i have 9.99mb left