A hairline fracture of the thumb sustained on the eve of the Thomas Cook Trophy game saw 'Isak' sidelined for a month before an ankle injury kept him out until October.
"It's the worst thing when you get injured at the beginning of the season," he confirmed.
"I had an injury at the start of last season as well not long after I'd joined the Club and I was out for two or three months.
"It's quite hard because you have to fight your way back into the team and do your best because it's quite hard when you are out injured at the start of a new season."
With the winning home record intact and back between the sticks as the Blues number one, the 26-year-old couldn't be happier as he summed up his City life.
"Definitely, I like it very much here and there's a great atmosphere at the Club and in the dressing room amongst the players. I like the city and everything here so it's great."