Sheffield Wednesday drew 0-0 with Hull City on Friday evening.
Hull look to be one of the favourites to achieve promotion from the Championship this season, as they have been in sparkling form so far this campaign.
However, Wednesday proved once again that they are a very tough opponent for any side in the second tier.
The Owls gave Steve Bruce’s side a tough battle on Friday, and a draw was a fair reflection on the way the match went.
Wednesday’s performance was spirited and determined, and Carvalhal praised his much changed backline for their displays in the contest.
He said: “We show our quality, we show our organisation, we moved some players because we needed to.
“In the defence, we moved three but they were fantastic.
“In the first half I thought we were more dangerous than Hull and were all the time dangerous.”
Wednesday’s match against Hull was their third in just six days, so Carvalhal made alterations to his team to ensure that they were fresh.
The Owls lined up with Liam Palmer, Tom Lees, Michael Turner and Joe Bennett as their back four for their match against promotion chasing Hull.
Wednesday’s draw with Hull has kept them in sixth place - and means that they have now lost just one of their last 10 matches.
Carvalhal’s side’s next match comes against Rotherham United on Saturday, and if they are able to win against Neil Warnock’s relegation threatened team they would further strengthen their place inside the top six.