CELTIC WERE 2-0 down to Molde inside the first 18 minutes in a game which saw former Manchester United favourite Ole Gunnar Solskjaer take over for a second spell in charge of the Norwegian side.
Mohamed Elyounoussi made the most of a poor Dedryck Boyata pass before finding Ola Kamara who drove the ball past goalkeeper Craig Gordon after 11 minutes.
Seven minutes later it was 2-0 thanks to Vegard Forren’s left-footed effort.
Kris Commons reduced the deficit in the 55th minute for Celtic but Molde restored their two-goal advantage just a minute later through Elyounoussi.
Fenerbahce recorded their first win in the same Group A thanks to a last minute Fernandao strike against Ajax.
Molde lead the way with seven points, three ahead of Fenerbahce while Ajax andCeltic have two points each.
Tottenham slipped up 2-1 at Anderlecht despite Danish midfielder Christian Eriksen giving them the lead after just four minutes.
But Anderlecht, who lost to the north Londoners in the 1984 UEFA Cup final, were back level before the quarter of an hour when right back Guillaume Gillet volleyed in a corner past Hugo Lloris.
Anderlecht bagged the points on 75 minutes when substitute Frank Acheampong crossed from the left for in-form Italian Stefano Okaka to charge into the box to slide the ball past Lloris despite one of his boots having fallen off.
Anderlecht moved up level with Spurs on four points in Group J topped by Monaco, 1-0 winners over Qarabag.
Klopp’s former team Borussia Dortmund brushed aside Azerbaijan’s FK Qabala 3-1 in Baku with Pierre-Emerick Aubameyang grabbing a hat-trick. The win left Dortmund top of Group C.
Struggling French giants Marseille, who are hovering just above the relegation zone at home, were defeated 3-2 at Portugal’s Sporting Braga, the 2011 runners-up with three goals coming in the last six minutes.
Ahmed Hassan and Wilson Eduardo put Braga in the driving seat at 2-0 before Romain Alessandrini and Michy Batshuayi appeared to have rescued a point for Marseille.
But Alan struck for the home side in the 88th minute to grab a dramatic winner after Marseille goalkeeper Steve Mandanda had flapped at a cross.
Braga lead Group F with a maximum nine points with Marseille six off the pace.
Italian Serie A leaders Fiorentina came unstuck 2-1 at home to Lech Poznan of Poland to leave them propping up Group I.
In Rome, Lazio were down to 10-men after six minutes when Mauricio was sent off after a foul on Jorgen Skjelvik.
Despite the numerical imbalance Alessandro Matri slotted the ball home to fire the Italians into a first half lead with Felipe Andersen and Antonio Candreva completing a 3-1 defeat of Rosenborg to leave them three points clear in Group G.
Fellow Italians Napoli scored three first-half goals to set up a 4-1 win over Midtjylland of Denmark with Manolo Gabbiadini grabbing a brace.
The win gave Napoli a perfect nine points from three games in Group D.
Group A
Fenerbahce (TUR) 1 (Fernandao 89) Ajax (NED) 0
Molde (NOR) 3 (Kamara 11, Forren 18 Elyounoussi 56) Celtic (SCO) 1 (Commons 55)
Group B
Bordeaux (FRA) 0 Sion (SUI) 1 (Lacroix 21)
Liverpool (ENG) 1 (Can 37) Rubin Kazan (RUS) 1 (Devic 15)
Group C
FK Qabala (AZE) 1 (Dodo 90+3) Borussia Dortmund (GER) 3 (Aubameyang 31, 38, 72)
PAOK Salonika (GRE) 0 FC Krasnodar (RUS) 0
Group D
Midtjylland (DEN) 1 (Pusic 43) Napoli (ITA) 4 (Callejon 19, Gabbiadini 31, 40, Higuain 90+4)
Legia Warsaw (POL) 1 (Kucharczyk) Club Brugge (BEL) 1 (De Fauw 39)
Group E
Rapid Vienna (AUT) 3 (Hofmann 34, Schaub 52, Petsos 68) Viktoria Pilsen (CZE) 2 (Duris 12, Hrosovsky 76)
Villarreal (ESP) 4 (Bakambu 17, 32, Soldado 61, Bailly 71) Dinamo Minsk (BLR) 0
Group F
Braga (POR) 3 (Hassan 61, Eduardo 77, Alan 88) Marseille (FRA) 2 (Alessandrini 84, Batshuayi 87)
Slovan Liberec (CZE) 1 (Luckassen 87) Groningen (NED) 1 (Hoesen 90+6)
Group G
Dnipro (UKR) 0 Saint-Etienne (FRA) 1 (Hamouma 44)
Lazio (ITA) 3 (Matri 28, Anderson 54, Candreva 79) Rosenborg (NOR) 1 (Soderlund 69)
Group H
Lokomotiv Moscow (RUS) 1 (Maicon 54) Besiktas (TUR) 1 (Gomez 64)
Sporting Lisbon (POR) 5 (Aquilani 38-pen, Montero 41-pen, Pereira 64, 77, Figueiredo 69) Skenderbeu (ALB) 1 (Jashanica 89)
Group I
Basel (SUI) 1 (Lang 15) Belenenses (POR) 2 (Leal 27, Kuca 45+1)
Fiorentina (ITA) 1 (Rossi 90) Lech Poznan (POL) 2 (Kownacki 65, Gajos 82)
Group J
Anderlecht (BEL) 2 (Gillet 13, Okaka 75) Tottenham Hotspur (ENG) 1 (Eriksen 4)
Monaco (FRA) 1 (Traore 69) Qarabag (AZE) 0
Group K
APOEL (CYP) 2 (Cavenaghi 45+9-pen, Carlao 59) Asteras 1 (GRE) 1 (Lluy 8)
Schalke (GER) 2 (Di Santo 6, Sane 73) Sparta Prague (CZE) 2 (Fatai 50, Lafata 63)
Group L
AZ Alkmaar (NED) 0 Augsburg (GER) 1 (Trochowski 43)
Partizan Belgrade (SRB) 0 Athletic Bilbao (ESP) 2 (Garcia 32, Extebarria 85)
