Borussia Dortmund beat Tottenham 3-0 in the Europa League on Thursday night.
Indeed, Tottenham lost 3-0 in Dortmund during the first leg of their last-16 Europa League tie.
The result leaves their place in Europe in serious doubt this season, with only a historic comeback being able to save them at White Hart Lane.
And Hazard was critical of Spurs' full-backs after the three-goal defeat.
Full backs have defended far far too narrow, they are alongside centre backs— Micky Hazard (@1MickyHazard) March 10, 2016
It's very tough to win a trophy in Europe trust me, you play some top teams along the way, we've just been way below our best tonight, COYS— Micky Hazard (@1MickyHazard) March 10, 2016
However, a number of Tottenham fans responded pointing the finger of blame elsewhere on Twitter.
Some did agree that Kieran Trippier was poor but the majority suggested Tottenham's midfield did not offer their back four anywhere near enough protection.
Mauricio Pochettino was questioned for his team selection - and here's how Spurs fans responded to Hazard's full-back suggestions...
@1MickyHazard the whole back 4 have been overrun because Mason & Carroll have been anonymous— Lee Carroll (@Lee_Carroll84) March 10, 2016
@1MickyHazard hate to say it but it's shown how average Mason is & how poor Chadli is yet again!Also proves how much we need another striker— Mark jarman (@Jarmanmark79) March 10, 2016
@1MickyHazard Real issue is the midfield selection surely. Better midfield would have allowed wider full backs.— Tom (@TomKoohi) March 10, 2016
@1MickyHazard I knows he's your boy Mickey but mason is out of his depth at this level— James Caulfield (@jrcaulf) March 10, 2016
@1MickyHazard full backs been dreadful as have Mason and Carroll, shocking. Embarrassing b— Headhunter (@tommckenzie81) March 10, 2016