FT: Celtic 0-4 Bayer Leverkusen - Hincapié and Wirtz net in first half; Alario converts from spot with Adli scoring in final seconds
Ange Postecoglou's side play first home group match
FT: Sparta Prague 1-0 Rangers: Hancko's header thuds in off post despite McGregor's attempted save
Kamara ordered off in second half for second booking with 16 minutes to play after being booed by crowd
Celtic 0-3 Bayer Leverkusen
Patrik Schick, the scourge of Scotland for Czech Republic at the summer Euro finals, is on for the visitors and makes his presence known immediately.
The striker rises above Cameron Carter-Vickers, but goalkeeper Joe Hart superbly claws away the powerful header.
Celtic 0-3 Bayer Leverkusen
Pat Bonner
Former Celtic goalkeeper on BBC Sportsound
Quote MessageThis is too good a team to give up three goals. Celtic may get a goal, but getting a result is not going to happen
Celtic 0-3 Bayer Leverkusen
Giorgos Giakoumakis is on for his Celtic debut.
That's at least a positive for the Greece striker, who has had injury problems since his summer transfer from VVV-Venlo.
He replaces David Turnbull, but it's a bit late for him to be match-saving hero.
Celtic 0-3 Bayer Leverkusen
Image source, SNSThe penalty that followed Paulinho's shot being blocked by Cameron Carter-Vickers' arm has effectively ended Celtic's hopes
Celtic 0-3 Bayer Leverkusen
It should be four for the visitors after former Celtic right-back Jeremie Frimpong cuts the ball back, but Lucas Alario fires wildly over from 12 yards.
Celtic 0-3 Bayer Leverkusen
The gamble of starting Callum McGregor so early on his return from injury hasn't worked for Celtic and the captain makes way along with fellow midfielder Tom Rogic.
On come James McCarthy and Nir Bitton.
Celtic 0-3 Bayer Leverkusen
Pat Bonner
Former Celtic goalkeeper on BBC Sportsound
Quote MessageCeltic have created four or five good chances in the opening stages of this half, but they find themselves another goal down. They have to take them.
Celtic 0-3 Bayer Leverkusen
How did he miss that?
Celtic should pull one back immediately as Jota's effort is beaten away by goalkeeper Lukáš Hrádecký.
Kyogo Furuhashi has the goal at the mercy, but the striker blasts into the side netting from only four yards out.
Celtic 0-3 Bayer Leverkusen
Pat Bonner
Former Celtic goalkeeper on BBC Sportsound
Quote MessageCeltic gave the ball away in the middle of the pitch and allowed Leverkusen to break and get into the box. It's not a 3-0 game though, that's for sure
Lucas Alario (penalty)
Argentine striker Lucas Alario sends Joe Hart the wrong way from the penalty spot.
Job done for Leverkusen now surely.
It looks like it is going to get worse for Celtic as Paulinho's shot comes off the arm of centre-half Cameron Carter-Vickers after Celtic goalkeeper Joe Hart beats away a Jeremie Frimpong strike.
Carter-Vickers earns a yellow card in addition.
Celtic 0-2 Bayer Leverkusen
Celtic continue to knock on the door, but David Turnbull is unable to make amends for his early mistake as the midfielder's free-kick fails to curl the right side of the post.
Celtic 0-2 Bayer Leverkusen
Pat Bonner
Former Celtic goalkeeper on BBC Sportsound
Quote MessageIt's another brilliant save. He's done everything right there. Jota has curled it right in at the post.
Celtic 0-2 Bayer Leverkusen
Celtic are doing everything but score - and are finding a brick wall in the shape of Leverkusen's Finland goalkeeper.
Jota's thunderbolt is pushed away this time by Lukas Hradecky and, with the goal at his mercy, fellow winger Liel Abada somehow sidefoots wide.
Celtic 0-2 Bayer Leverkusen
Celtic's Tom Rogic is unfortunate to be booked for an arm across the face of rival midfielder Charles Aranguiz.
Celtic 0-2 Bayer Leverkusen
Celtic continue to press, but Adam Montgomery's strike is straight at the visiting goalkeeper this time.
Celtic 0-2 Bayer Leverkusen
Pat Bonner
Former Celtic goalkeeper on BBC Sportsound
Quote MessageIt's that movement from Kyogo again. Hradecky gets his fingertips to it magnificently. But, again, Kyogo's movement is key
Celtic 0-2 Bayer Leverkusen
Kyogo Furuhashi starts the second half the same way as the first as his shot on the turn threatens a goal.
However, the Celtic striker's shot on the turn is matched by the fingertips of goalkeeper Lukas Hradecky - and not for the first time tonight.
Celtic 0-2 Bayer Leverkusen
Celtic get the second 45 minutes under way - and what a big one it is.
They'll probably need their best performance of the season to rescue at least a point.
HT: Celtic 0-2 Bayer Leverkusen
James McFadden
Former Scotland forward on BBC Sportsound
Quote MessageCeltic have to use the movement of Kyogo. They have to find him. They have a chance of getting back into the game - they have to go for it