Former Celtic player John Collins & Motherwell Manager Jens Berthel Askou...

Liverpool & Scotland player Andy Robertson watches the action from the...

Liverpool & Scotland player Andy Robertson watches the action from the...

Celtic interim Chairman Brian Wilson, Celtic Chief Executive Michael Nicholson...

Celtic interim Chairman Brian Wilson, Celtic Chief Executive Michael Nicholson...

Celtic interim Chairman Brian Wilson, Celtic Chief Executive Michael Nicholson...

Celtic interim manager Martin O'Neill

Ramon Hendriks of Stuttgart & Hyunjun Yang of Celtic

Celtic interim manager Martin O'Neill & Celtic interim assistant manager Shaun...

Ramon Hendriks of Stuttgart

Stuttgart Head Coach Sebastian Hoeness

Celtic interim manager Martin O'Neill & Celtic interim assistant manager Shaun...

Celtic interim manager Martin O'Neill & Celtic interim assistant manager Shaun...

Celtic interim manager Martin O'Neill & Celtic interim assistant manager Shaun...

Marcelo Saracchi of Celtic stands with hands on hips while Tiago Tomás of...

Tiago Tomás of Stuttgart is mobbed by team mates as he celebrates scoring to...

Tiago Tomás of Stuttgart is mobbed by team mates as he celebrates scoring to...

Tiago Tomás of Stuttgart celebrates scoring to give Stuttgart a 1-3 lead.

Tiago Tomás of Stuttgart celebrates scoring to give Stuttgart a 1-3 lead.

Jeff Chabot of Stuttgart Heads the ball under pressure from Daizen Maeda of...

Kelechi Iheanacho of Celtic jumps over VFB Stuttgart goalkeeper Alexander Nübel

VFB Stuttgart goalkeeper Alexander Nübel

Celtic fan holds a scarf.

VFB Stuttgart fans.

VFB Stuttgart fans.

VFB Stuttgart fans.

VFB Stuttgart fans.

VFB Stuttgart fans.

Jeff Chabot of Stuttgart heads the ball clear above Tomas Cvancara of Celtic.

Tomas Cvancara of Celtic crosses the ball beyond Ramon Hendriks of Stuttgart.

Tomas Cvancara of Celtic crosses the ball beyond Ramon Hendriks of Stuttgart.

Celtic starting eleven players group before kick off.

VFB Stuttgart starting eleven players group before kick off.

VFB Stuttgart starting eleven players group before kick off.

Ramon Hendriks of Stuttgart

Celtic interim manager Martin O'Neill & Celtic interim assistant manager Shaun...

Celtic interim manager Martin O'Neill

Celtic interim manager Martin O'Neill

Celtic interim manager Martin O'Neill

Daizen Maeda of Celtic & Jeff Chabot of Stuttgart

Celtic goalkeeper Kasper Schmeichel reacts with Liam Scales of Celtic after...

Celtic goalkeeper Kasper Schmeichel reacts with Liam Scales of Celtic after...

Celtic goalkeeper Kasper Schmeichel dives to stop an own-goal from a poor...

Celtic goalkeeper Kasper Schmeichel dives to stop an own-goal from a poor...

Celtic goalkeeper Kasper Schmeichel dives to stop an own-goal from a poor...

Bilal El Khannouss of Stuttgart celebrates scoring his 2nd goal of the game to...

Daizen Maeda of Celtic & Jeff Chabot of Stuttgart

Daizen Maeda of Celtic & Jeff Chabot of Stuttgart

Daizen Maeda of Celtic & Jeff Chabot of Stuttgart

Bilal El Khannouss of Stuttgart celebrates scoring his 2nd goal of the game to...

Benjamin Nygren of Celtic celebrates scoring to tie the game 1-1, with Paulo...

Bilal El Khannouss of Stuttgart celebrates scoring his 2nd goal of the game to...

Bilal El Khannouss of Stuttgart celebrates scoring his 2nd goal of the game to...

Bilal El Khannouss of Stuttgart celebrates scoring his 2nd goal of the game to...

Bilal El Khannouss of Stuttgart celebrates scoring his 2nd goal of the game to...

Bilal El Khannouss of Stuttgart celebrates scoring his 2nd goal of the game to...

Bilal El Khannouss of Stuttgart celebrates scoring his 2nd goal of the game to...

Celtic interim manager Martin O'Neill

Celtic interim manager Martin O'Neill

Celtic interim manager Martin O'Neill

Celtic interim manager Martin O'Neill

Benjamin Nygren of Celtic celebrates scoring to tie the game 1-1.

Benjamin Nygren of Celtic celebrates scoring to tie the game 1-1.

Benjamin Nygren of Celtic celebrates scoring to tie the game 1-1.

Benjamin Nygren of Celtic celebrates scoring to tie the game 1-1.

Benjamin Nygren of Celtic celebrates scoring to tie the game 1-1.

Benjamin Nygren of Celtic celebrates scoring to tie the game 1-1.

Benjamin Nygren of Celtic celebrates scoring to tie the game 1-1.

Bilal El Khannouss of Stuttgart celebrates scoring to give Stuttgart a 0-1...

Bilal El Khannouss of Stuttgart celebrates scoring to give Stuttgart a 0-1...

Bilal El Khannouss of Stuttgart celebrates scoring to give Stuttgart a 0-1...

Bilal El Khannouss of Stuttgart celebrates scoring to give Stuttgart a 0-1...

Sebastian Tounekti of Celtic and club staff remove balls thrown on to the...

Bilal El Khannouss of Stuttgart celebrates scoring to give Stuttgart a 0-1 lead.

Bilal El Khannouss of Stuttgart celebrates scoring to give Stuttgart a 0-1 lead.

Bilal El Khannouss of Stuttgart celebrates scoring to give Stuttgart a 0-1 lead.

Bilal El Khannouss of Stuttgart celebrates scoring to give Stuttgart a 0-1 lead.

Bilal El Khannouss of Stuttgart scores to give Stuttgart a 0-1 lead.

Bilal El Khannouss of Stuttgart scores to give Stuttgart a 0-1 lead.

Paulo Bernardo of Celtic removes balls thrown on to the pitch by Celtic fans...

Tomas Cvancara of Celtic removes balls thrown on to the pitch by Celtic fans...

Tomas Cvancara of Celtic removes balls thrown on to the pitch by Celtic fans...

Tomas Cvancara of Celtic removes balls thrown on to the pitch by Celtic fans...

Sebastian Tounekti of Celtic removes balls thrown on to the pitch by Celtic...

Josha Vagnoman of Stuttgart kick ball thrown on to the pitch by Celtic fans as...

Josha Vagnoman of Stuttgart kick ball thrown on to the pitch by Celtic fans as...

Celtic players arrive at Celtic Park.

Celtic goalkeeper Kasper Schmeichel arrives at Celtic Park.

Celtic captain Callum McGregor arrives at Celtic Park.

Celtic goalkeeper Kasper Schmeichel arrives at Celtic Park.

Celtic captain Callum McGregor arrives at Celtic Park.

Celtic captain Callum McGregor arrives at Celtic Park.

Celtic captain Callum McGregor arrives at Celtic Park.

Celtic interim assistant manager Shaun Maloney arrives at Celtic Park.

Celtic interim manager Martin O'Neill arrives at Celtic Park ahead of his...

Celtic interim manager Martin O'Neill arrives at Celtic Park ahead of his...

Celtic interim manager Martin O'Neill arrives at Celtic Park ahead of his...

Celtic interim manager Martin O'Neill arrives at Celtic Park ahead of his...

Celtic interim manager Martin O'Neill arrives at Celtic Park ahead of his...

Celtic interim manager Martin O'Neill arrives at Celtic Park ahead of his...