Walter Smith caused Celtic plenty of misery in his time as Rangers manager, and the green-and-white half of Glasgow are currently in a despondent mood.
Rather than rub their noses in it, though, Smith has defended their nine-in-a-row achievement.
It was widely expected that Neil Lennon’s side would secure a historic tenth successive title this season, but the wheels came off in spectacular fashion.
Lennon confirmed his resignation in February after months of protests from fans, with the club having exited the Betfred Cup, Europa League and Champions League with a series of meek performances.
Of most concern to Celtic fans was the lead built up by Rangers this season, which now stands at 20 points following the goalless draw between interim manager John Kennedy’s side and Dundee United at Tannadice.
That result saw Rangers crowned champions, but Smith believes Celtic’s own achievement shouldn’t be diminished by the absence of his former club for much of that nine-in-a-row run.
As quoted by the Daily Record, he said: “Look, whatever happened to Rangers, whether I agree with what happened or I don’t, it doesn’t matter, because it happened.
“Rangers weren’t in the league. But what do you say, then, that it doesn’t happen? No, it does happen. And Celtic won them.
“Listen, to qualify that, people might turn round and say – including myself – that it was easier because Rangers weren’t there.
“But you’ve still got to do it. You don’t get anywhere by looking back the way all the time.
“Celtic have won nine championships in Scotland. And that’s it. That’s what they’ve done.
“All the other stuff, yes, as can all complain about. And I can have my own thoughts on all that. But they’ve won it.
“It’s been proven on occasions before, with myself and Mr (Jock) Stein, where we had the opportunity to win ten and we didn’t do so.
“Nine then becomes a figure and now it’s one in a row. And that’s it.
“That’s where Rangers are at the present moment and I’m sure Steven Gerrard will look forward to next season. He’ll want to win the league again next year.”