"It felt like mine and I celebrated like it was mine.

'I hope Canada woke up early for that kick-off to see that and it was an important one.'

"We knew at half-time being down a goal but up and man we had to stick to what we were doing and we got the equaliser and then it felt good to at least be part of the goal that pushed us ahead.

"It was a good result in the end and a good performance in the second-half.

"Our leadership helped us not get off the script and to keep creating chances and it paid off and it's a credit to the manager for keeping everyone level-headed at half-time.

"We kept playing our football and our subs came on and made a difference and raised the levels again and then once we got the first we knew we would get the next and we kept going."

That coolness under pressure helped Celtic score five in the second period to claim an impressive three points, a result which was aided by the contribution of those from the substitutes bench.

Liel Abada won the Player of the Match award having come on at half-time and Johnston, playing behind him on the right, was impressed by the winger's display.

He added: "He's so dynamic and that goes to show for all our wingers. They all pose a slightly different threat, they're so talented and they are a nightmare.

"I know as a full-back when you go up against someone for 60 minutes and they run you ragged and then all of a sudden a new fresh player comes on with a new threat it's always a nightmare."

Hearts are up next on Wednesday, with a second meeting following on Saturday, with the focus now shifting to a big week in two crucial games in the league and the cup.

Looking ahead, Johnston said: "We know the most important thing is getting the results.

"As long as we're keeping clean sheets and progressing then I'm happy and it's a good start to a big week."

Johnston: I celebrated like it was my goal so I'm claiming it