'What a way to sign off' for O'Neill in Europe

Former Celtic goalkeeper Pat Bonner on BBC Sportsound

Lots and lots of positives. The players who started will be very proud of themselves. The workrate was exceptional.

You don't have to have all the possession to win the game. You've got to work hard, defend well, get a bit of luck and have a good goalkeeper.

They just couldn't get that second goal to get the squeeze on Stuttgart.

A win in Germany. What a way to sign off if this is his [Martin O'Neill's] last European game.

Former Celtic midfielder Stiliyan Petrov on TNT Sports

Viljami Sinisalo knew he was under the microscope and he did everything perfectly. It's a big decision for Martin O'Neill now.

The team was really solid. You don't have to be pretty to win games.

Former Scotland forward James McFadden on BBC Sportsound

The positive for Celtic is the number of good performers in the team. It was a good performance, they were solid. There were players bailing their team-mates out, they were getting blocks in.

Overall a strong performance, Sinisalo did everything that was asked and has to be in serious contention to start on Sunday.

Former Celtic captain & manager Neil Lennon on Premier Sports

Over the last 15 years the board's record has been impeccable. You're not going to get it [a European run] every year. There was no Champions League this year so they had to re-budget.

It's difficult to attract £10m, £12m, £15m players to Scotland unless you're guaranteed Champions League. If we'd have qualified against Kairat Almaty I would have thought the club would have spent a sizeable amount of money.