The Celtic defender says it is hard to take anything from his performance given the nature of the defeat and admits he must now try to clear his head.
Celtic defender Kieran Tierney has told the club's official website that he cannot take any positives from his individual performance or that of his team as a collective after the penalty shooutout defeat to Rangers on Sunday.
The Bhoys suffered arguably their worst day in recent years as Tom Rogic blazed the deciding spot-kick high and wide to hand Scottish Championship winners the Gers victory and a place in the Scottish Cup final at Hampden Park.
For Tierney, it was an excruciating way to lose his first Old Firm derby, particular after he had stood out as the main defensive force for Ronny Deila's side for large portions of the match.
At such a young age, occasions such as Sunday can have a huge effect on some players, and Tierney suggested he may struggle to move on from the trauma of the defeat.
The 18-year-old told the club's website: "The result was the most important thing for us and we didn’t get it. The pressing at times let us down and we could have been better in a lot of areas so we're disappointed.
"Anyone can win when it goes to penalties and it might be about luck and confidence when it comes to that so we’re absolutely gutted.
"It’s hard to take anything from your performance when you lose like that so I need to clear my head and get back to winning ways for next weekend. We’re in control of the league so we need to keep winning games and try to wrap that up as quickly as possible."
Tierney must now look to help himself and his side recover as soon as possible as they look to wrap up a fifth consecutive Premiership title.
Deila's men are eight points clear at the top of the table ahead of facing Ross County at Parkhead next Sunday.