Joe Hart: He persisted with playing the high line role 30 yards from goal but was beaten all ends up inside 60 seconds by Sam Gallagher's accurate low drive. That apart, his handling was as safe as houses but his field position does give the Celtic support cause for alarm. 7

Josip Juranovic: After a shaky start Juranovic recovered to settle down into the contest. The Croatian linked the play very well with O'Riley in midfield and Abada down the flank. He can possess real quality when he ventures forward but is still prone to the odd defensive lapse in concentration. 7

Cameron Carter-Vickers: It was a typical no-nonsense, no-frills display by the USA international defender. He put in a great first-half sliding challenge on Jack Vale and reminded his rivals why he is such a defensive menace and a big powerful unit to play against. He had one momentary lapse with Welsh that almost brought an equaliser but was otherwise sound. 7

Stephen Welsh: The Scot defended diligently all afternoon and kept everything neat and tidy and simple but was on the receiving end of a robust challenge when McGregor's attempted ball put him under pressure. There was a bit of miscommunication with Carter-Vickers which saw Siegrist bail them out as Blackburn chased an equaliser. 7

Greg Taylor: Taylor is very rarely wasteful in possession and really has taken to the inverted full-back role like a duck to water. Gallops forward whenever he can and is a player who continues to up his game and improves with every display. He was replaced by Alexandro Bernabei at the interval. 7

Callum McGregor: It was an uncharacteristic mistake by the skipper which allowed Blackburn to break forward and score the opener after he took a poor touch from Matt O'Riley's pass. He recovered excellently well from that early setback although another short pass to Welsh saw him cop a sore one. 7

Matt O'Riley: What a player this boy is going to be. O'Riley's one and two-touch football will catch out most opposition this season, especially domestically. It will be very interesting to see how he fares in the Champions League. It was the Danish under-21 international's corner that led to the equaliser and he also had a chance whipped off his toe by Kyogo. He was cynically hauled down for the free-kick that led to Turnbull giving the hosts the lead. 8

David Turnbull: The 'Bull' had a beautiful one-two exchange with Jota but his low centre failed to find any takers. The Scotland midfielder gave Celtic the lead on 27 minutes when his drilled free-kick took a deflection and ended up in the back of the net. He showed up well in general and was always looking to be creative in the final third. 8

Liel Abada: Israel international Abada enjoyed a decent cameo against Banik Ostrava and curled an early effort wide of the target here to indicate that he was in the mood. He produced a classy nutmeg at one point but his delivery and crossing into the box at times left a lot to be desired. He was the victim of a nasty challenge by Harry Pickering who was rightfully booked. 7

HeraldScotland:

Kyogo Furuhashi: If you want to talk about learned behaviours then Kyogo's clever-headed knockdown into the path of Jota for his strike at goal was sumptuous and underrated. The Japan international has returned with a bang and really is a joy to watch with his quick movement and game intelligence. He screamed one over the top when O'Riley might have been better placed and managed to squeeze in an effort at Thomas Kaminski's goal which was well saved. 7

Jota: The new permanent signing marked his return to Parkhead by cracking in a low strike via the right-hand post on 16 minutes for a well-deserved equaliser. Despite getting hurt in the process, the winger continued to dance up and down the touchline to decent effect and had another effort saved by Kaminski. Jota looked sharp throughout as he showed the home fans a glimpse of what they can expect on a regular basis for the next five years with a classy piece of showboating early in the second half. 8

Second half substitutes

Benjamin Siegrist: Given his bow at Celtic Park as he replaced Joe Hart at the interval. The Swiss goalkeeper made a fine stop from Ben Brereton Diaz's shot and two Gallagher efforts to preserve the lead but was soundly beaten by Diaz's set-piece. 7

Anthony Ralston: Ralston replaced Juranovic for the second period and charged up and down the line as he usually does but made way for Urhoghide as he trudged off gingerly near the end. 5

Alexandro Bernabei: History-maker Bernabei became the first Argentine to represent Celtic at Parkhead and he got his ovation at the restart as Taylor made way. He looked eager to impress and was denied a dream goal in his new home as his fierce drive was beaten away by Kaminski. 7

James Forrest: Came on in the 46th minute for Abada and fired a couple of low balls across the face of the goal that were easily mopped up. 5

Daizen Maeda: Effervescent and always full of endeavour and running just like Kyogo, who he replaced. The Celtic fans really appreciate the work and team ethic that he brings to the side and he arguably exemplifies what a Postecoglou player brings to the table. 7

Mikey Johnston: Given half an hour when he replaced Jota to show what he could do but was rather subdued and got booked for a rash tackle. 5

Yosuke Ideguchi: Handed a rare chance to shine in front of the home support. The  Celtic fans have so far refrained from making any snap judgements as they need to see more of him in action. The Japanese midfielder played a ball blind that landed Jullien in bother and Blackburn scored from the resultant free-kick to make it 2-2. 5

Rocco Vata: Came on for the last 17 minutes but unfortunately for him was never given a sight of goal but looks a decent prospect for the future. 4

James McCarthy: Given the last quarter of an hour or so. Booked. 4

Bosun Lawal: B-team centre-back was given valuable first-team minutes and slotted in well enough alongside Jullien -although his distribution needs some fine-tuning. 4

Christopher Jullien: The Frenchman's foul from Ideguchi's wayward pass led to Blackburn's equaliser and took the gloss off it a bit for the supporters. 4

Osaze Urhoghide: Brought on as Ralston limped off in the closing stages. 

Substitutes not used: Scott Bain Tobi Olawuyemi, Johnny Kenny