The left-back was left scarred after the shocking knee-high challenge that, amazingly, did not warrant a straight red card from referee Don Robertson.
But, after being left in a heap on the touchline following Bowman’s reckless charge, the 19-year-old international defender admitted thoughts of another lengthy lay-off flashed into his mind.
“It was sore. You kind of know sometimes when you have done something and I thought it was bad.
“He caught me high and my knee is all cut. I feared the worst, but, thankfully, it was okay. I got lucky.
“Having just come back from injury, the last thing I wanted was another one.
“The pitch has a bobble on it, but there are no excuses. It was a bad tackle.”
The match official stunned players and fans alike by merely brandishing a yellow card for the x-certificate tackle and Tierney thought the punishment could have been more severe.
He added: “He just said sorry to me after it. I didn’t say much back.
“I thought straight away it was a red card. If you look at my knee just now, and the fact he caught me with his studs that high, then you’d think it would be.
“But that’s not my decision. Hopefully, the knee should be fine. It is sore, but other than that, it’s fine.”