It was not the way he would have wanted to mark the achievement.
But Conor Chaplin is still proud of reaching 100 appearances for Pompey after coming off the bench in a 2-1 defeat at Doncaster.
He almost celebrated with a goal, only to see his free-kick from the edge of the box cannon back off the woodwork.
Chaplin is not content with reaching the landmark, however, and is already looking ahead to the next century.
The 20-year-old academy graduate said: “It’s a very proud moment – not just for me, but for my family as well.
“I’ve grown up playing for this club and you don’t really think about getting to that many games, although it’s happened quite quickly.
"It’s nice to reach that landmark, but I’m not sure if I’ve got a chance of ever reaching Alan Knight’s figure!"
“I would have liked a few more starts, but to get to 100 appearances for a club like Pompey – with its history and fan-base – is a real honour.
“It’s nice to reach that landmark, but I’m not sure if I’ve got a chance of ever reaching Alan Knight’s figure!
“If I’m looking ahead to what’s next, then I suppose it’s getting another 100 and also winning another promotion in that time.”
Pompey conceded twice in the opening five minutes at the Keepmoat Stadium before a bizarre own-goal handed them a lifeline.
Dion Donohue’s red card halted their charge, but Jamal Lowe almost rescued a point deep into stoppage-time.
Chaplin said: “I thought we did enough to have got something from the game and the save the keeper made at the end was great.
“It was a bit disheartening to see that happen because we thought that it was going in from Jamal and we’re all really frustrated.
“But you can’t start a game in that fashion – no matter who you’re playing against. It was always going to be an uphill battle after that.
“We gave it a really good go, but if you concede twice in the first five minutes then you can’t expect to get anything from the match.
“I don’t want to get carried away, though, because we’ve had a fairly decent start to the campaign and now I want to focus on staying fit and helping the lads.”