Celtic suffered a 4-1 Europa League play-off defeat to Stuttgart at Parkhead, with goalkeeper Kasper Schmeichel at the center of criticism after errors led to two goals. Former Scotland forward James McFadden noted the 39-year-old appears unprepared for shots, particularly down his left side. The Denmark international's form has declined recently.

Schmeichel has conceded 19 goals in nine European matches this season with a save percentage of just 62%. Former Celtic captain Neil Lennon condemned the treatment Schmeichel received from fans. Interim manager Martin O'Neill and captain Callum McGregor defended their goalkeeper, emphasizing collective responsibility while suggesting understudy Viljami Sinisalo could be considered.

Pundit Pat Bonner believes Sinisalo should have been given more chances earlier in the season. Celtic now faces an unlikely salvage mission in Germany next Thursday before crucial domestic fixtures against Hibernian and Rangers. The club's European campaign hangs in the balance as their season approaches a critical juncture.