Newcastle loanee was on the wrong end of a hammering for AZ Alkmaar.
The international stopper has spent the season out on loan, the first half at Ajax before switching to AZ in January.
He may now be wishing he had not bothered. In five games he is yet to keep a clean sheet and has conceded 17 goals.
Krul suffered a serious knee injury last season and missed Newcastle's relegation to the Championship, and this season he never really figured in Rafa Benitez's plans.
Newcastle have Karl Darlow as their number one with Rob Elliott also as an option.
It would be a surprise if Krul has a future at the club next season even if they return to the top flight, but if he was playing for a future move to a top club, he will want to burn the tapes of last night's game.
Here is a look at how Newcastle United fans reacted on Twitter to Krul's misfortune...
Krul conceded 7 goals tonight! but it's ok, alwaysss believe innn Karl Darlow! #NUFC— Gallowgate Views (@GallowgateViews) February 23, 2017
7-1 on the night, 11-2 on aggregate. Tim Krul has unfortunately shipped 11 goals over two legs against France's 4th best side #NUFC— Joe (@Joe_Donnohue27) February 23, 2017
Tim Krul has conceded 4 in 34 minutes. Going well then... #NUFC— Scott (@ScottBarclay6) February 23, 2017
Tim Krul will go to sleep tonight dreaming of the good old days. When he couldn't get on Ajax's bench.— Ben Spratt (@bensprattjourn) February 23, 2017