Roberto Mancini has suggested that Chelsea have an "80 per cent" chance of eliminating his Galatasaray side from the UEFA Champions League.
The Turkish champions play host to the Premier League leaders on Wednesday in the first leg of a last-16 tie.
Former Manchester City manager Mancini is fully aware of the threat posed by Chelsea, and feels Galatasaray must focus on at least giving themselves a chance ahead of next month's return meeting at Stamford Bridge.
"Everyone knows Chelsea are one of the best teams in Europe," Mancini said.
"They won (the) Europa League last year and (the) Champions League two years ago.
"They are used to playing these games every year and we know it will be difficult.
"I think Chelsea are top of the Premier League because they are a top team, with good players who can change the game in any moment. I think they are 80 per cent to go through in this game.
"It's important we play well in this match because we want to play the return leg in London with some chance."
Much has been made of the tie between Galatasaray and Chelsea reuniting Didier Drogba with his former club.
Yet Galatasaray midfielder Wesley Sneijder will also be coming up against a familiar opponent, having won the Champions League under current Chelsea boss Jose Mourinho during the duo's time at Inter.
"Well, what can I say about him? We won this cup together," the Dutchman said.
"Of course we are friends outside the pitch but tomorrow (Wednesday) for 90 minutes we will not be friends. I respect him a lot as we all respect him and respect Chelsea. We want to go for the victory but with respect.
"Of course I have some special feelings with Mourinho because we won the treble and had a great year together.
"It's going to be a tough game but we have prepared well and we will see what happens - we feel really confident.
"If we are all 100 per cent we can achieve something."
|Coach: R. Mancini|
for I. Hajrović 31'
for H. Balta 46'
for D. Drogba 80'
|No back-three fears for Spain boss Del Bosque|
|Grigg fired by Euro bench duty|
|Davis: Stranger things have happened than O´Neill to Southampton|
|Gunnarsson insists Iceland do not fear England|
|Brilliant Hazard inspires Belgium´s golden boys|
|Student Morata wants to bring down Juventus masters with Spain|
|Hungary 0 Belgium 4: Hazard inspires Wilmots´ men into quarter-finals|
|Conte demands extraordinary Italy to topple Spain|
|Nolito: No contact with Barca or Man City|
|Alves jets into Turin for Juve medical|
|Low: No sleepless nights over Italy or Spain|
|Kozak: Germany had too much quality|
|Fury gets in the spirit with England fans in Nice|
|Draxler shares the plaudits as Germany move through|
|O´Shea not drawn on Ireland future|
|Rami: France were scared of going out|
|Germany 3 Slovakia 0: Spain or Italy await for world champions after comprehensive win|
|Brilliant Boateng gets Germany juggernaut motoring|
|Lagerback hopes England´s attacking struggles will continue|
|Juventus, Napoli and Roma ´all interested in De Sciglio´|
|O´Neill hails coming of age for Ireland´s youngsters|
|England will not disrespect Iceland, says Rooney|
|Deschamps stands firm on team changes|
|Hodgson adamant he is happy with England strikers|
|Evra: We knew it would be difficult|
|Deschamps: We had to dig deep|
|Rooney: Do not question Sterling´s attitude|
|O´Neill: France´s extra rest took its toll|
|France star Payet: It is difficult to stop us|
|Griezmann: Stern words led to second-half fightback|
|Coleman: We felt it was there for us|
|Deschamps defies doubters as France heed call to arms|
|Konko ´in talks´ to join AC Milan|
|Sigurdsson looking forward to dream England clash|
|Cacic: Croatia´s time will come|
|Italy v Spain will be different to Euro 2012 final - Camoranesi|
|France 2 Republic of Ireland 1: Griezmann double rescues hosts|
|Capello: Spain are pure magic|
|Wolfsburg complete Bruma signing|
|Koke: Spain need to bring back ´The Red Fury´|
|Pizzi: Chile can beat Messi and Argentina|
|Schalke swoop for Swiss star Embolo|
|Subotic signals intention to leave Dortmund|
|Howedes eager for France showdown|
|Russia confirm Slutsky resignation|
|Pirlo: Italy out for Spain revenge|
|Vokes consoles McAuley after Wales march on|
|Italy-Spain a battle of world´s best - Llorente|
|Messi one win away from becoming the greatest|
|Play-offs the goal as Baptista settles into life in Orlando|
|Colombia closer to winning titles - Pekerman|
|MLS Review: Kaka scores 100th-minute penalty in thriller, Lampard inspires NYC|
|Portugal ´don´t have a clue how they scored´ – Rakitic|
|Klinsmann: USA should be proud of Copa America display|
|United States 0 Colombia 1: Bacca secures third place at Copa America|
|Corluka: Portugal among worst teams at Euro 2016|
|Sanches happy to be involved as Portugal reach quarters|
|Euro 2016 Diary: Shaqiri rivals Pique for Shakira´s affection, Bale reveals secret weapon|
|Morata: I have nothing to prove to Zidane|
|Di Maria fit for Copa final|
|´You do not always win by playing prettily´ - Santos unconcerned by dour Portugal|
|The best team lost, says disconsolate Cacic|
|Fabianski: Poland must create more for Lewandowski|
|McAuley pride after crushing Wales loss|
|Ronaldo takes one for the team as Portugal emerge from drudgery in Lens|
|Croatia 0 Portugal 1 (aet): Quaresma earns quarter-final berth|
|Hodgson will not beg for FA approval after Euro 2016|
|Emotional Bale glad to share Paris joy with family|
|O´Neill left frustrated by officials following Euro 2016 exit|
|Coleman hails Bale brilliance in Wales win|
|Low relying on Kroos to lead Germany the way|
|Italy v Spain: Thiago denies shirt jinx ahead of Azzurri clash|
|O´Neill: McAuley has been magnificent|
|Szczesny thanks Swiss fans for drink|
|Hector: Slovakia have plenty of quality in attack|
|Morata: Italy defenders have told me to wear a helmet|
|Coleman content with scrappy Wales progression|
|Wales remain and Northern Ireland leave after Paris battle|
|We are free of pressure - Gera|
|´Do I look like I have doubts?´ - Defiant Nawalka defends Lewandowski|
|Wales 1 Northern Ireland 0: McAuley´s woe is Welsh joy|
|No chance Barcelona star Neymar will join Madrid, says his father|
|Witsel happier to face Hungary than Spain|
|Wilmots accepts pressure ahead of Hungary test|
|Slovakia can upset Germany again - Pekarik|
|Shaqiri unhappy with Poland celebrations after Euro 2016 exit|
|Grosicki struggled to watch Poland shootout win|
|Poland need Lewandowski to rediscover ruthless streak|
|Switzerland 1 Poland 1 (aet, 4-5 pens): Xhaka shocker costs Swiss after Shaqiri magic|
|Payet can handle hero status - Deschamps|
|Redmond joins Southampton on five-year deal|
|Sturridge: Sterling unfairly targeted over England performances|
|Wilmots: I want more from smiling De Bruyne|
|Croatia star Perisic unveils latest wacky hairstyle|
|Brazil´s Lucas Lima wants European move|
|Lloris tempers talk of Ireland revenge mission|
|Deschamps refuses to make France ´98 comparisons|
|O´Neill confident Ireland can shock France|
|Chiellini will give Morata a few kicks - Barzagli|
|England v Iceland: Rooney targets early goal|
|Italy´s Candreva ruled out of Spain match|
|Butland ready for pre-season after scan gives goalkeeper all-clear|
|Origi not underestimating Hungary|
|Plans drafted for Old Firm games to be played abroad|
|Boost for Germany as Boateng trains ahead of last 16|
|I never saw Ronaldo look in the mirror! - Ancelotti|
|Fabregas fears Brexit will damage Premier League|
|Roy not keen on Ireland allocation|
|Dyke backs Hodgson for new contract|
|Spain not as aggressive as 2012, claims Ancelotti|
|Ronaldo and Messi need each other – Ancelotti|
|Juve on the same level as Madrid and Barcelona - Dybala|
|Fabregas: Conte´s Italy will be tough|
|Argentina v Chile: New year, same Copa finalists|
|Ronaldo ´cannot be the whole of Portugal´ - Shilton|
|Messi: Neymar is an amazing person|
|Pekerman keen to finish Copa on high note|
|Rakitic: Ronaldo won´t sleep easily|
|Messi: Now is not a time to give nothing|
|Courtois expects to leave Chelsea in future|
|Less rest no problem for Portugal - Joao Mario|
|Euro 2016 Diary: Benteke rap and Nelly the elephant|