Jamal Blackman felt the Blades could have snatched all three points against Nottingham Forest on Saturday.
But the Chelsea loanee was pleased with his own contribution in the stalemate with Aitor Karanka's side.
Reflecting on what was a bitterly cold afternoon at S2, the goalkeeper remarked: "It was crazy conditions out there and it was freezing, but I think everyone was just happy the game could be played.
"We tried to be positive and play somewhere near our best, but unfortunately we couldn't get the right result."
Blackman added: "It was a game of chances, both teams could have scored, but personally I'm happy with the clean sheet, it's just a shame we could snatch a goal at the other end.
"Pantilimon is a fantastic goalkeeper at the other end, having played for Manchester City and I was just happy to be on the same pitch as someone like him and show people what I can do.
"We're still in a good position in the table and we should continue to concentrate on ourselves."