Ruben Cousillas has warned Barcelona that Manchester City "have the weapons" to produce a UEFA Champions League fightback on Wednesday.
City assistant manager Cousillas attended Tuesday's press conference on the eve of the second leg of the sides' last-16 clash at Camp Nou, with boss Manuel Pellegrini not obliged to carry out media duties due to his two-match UEFA suspension.
Pellegrini will watch from the stands on Wednesday as a result of his punishment for criticising Swedish referee Jonas Eriksson after City's 2-0 defeat in the first leg at the Etihad Stadium, so Argentine Cousillas and Brian Kidd will take on greater responsibility.
City have it all to do after being outclassed by the Catalan giants last month and head into the game on the back of a shock 2-1 FA Cup quarter-final defeat against Championship side Wigan Athletic on Sunday.
Barca have problems of their own, though, as they were beaten 1-0 at struggling Real Valladolid on Saturday and are now third in La Liga - four points behind leaders Real Madrid.
Cousillas knows that City are faced with a tall order to turn the tie around, but the 56-year-old has no doubt that the Premier League side are capable of progressing to the quarter-finals.
He said: "We have to try and turn this game around and we have the weapons to do that. That is what we will try to do, fight until the end.
"We will try to be the main characters and take our own risks, of course with the precautions of facing a great team
"In order to beat Barcelona, we will have to play a very complete game."
The City number two also backed the Premier League side to put their FA Cup disappointment behind them as they attempt to qualify for the last eight of Europe's premier club competition for the first time and win another trophy following their League Cup success at Wembley earlier this month.
"We had a big sense of frustration because we wanted to be back at Wembley and win another cup, but Wigan surprised us," he said.
"We have turned the page and we have experienced and quality players, which means we are more united than ever and we have forgotten everything in preparation for tomorrow."
Martin Demichelis will play no part as a result of his red card against Barca in the first leg.
Cousillas revealed that centre-back Matija Nastasic (knee) and striker Stevan Jovetic (hamstring) have not travelled with the squad.
|Coach: G. Martino|
for Neymar 80'
for Fàbregas 86'
|Mashaba wants lessons to be learnt after AFCON exit|
|Mourinho refuses to wade into Costa incidents after Chelsea win|
|Football League Review: Bent double sends Derby second, Rotherham triumph|
|Chelsea 1 Liverpool 0 (aet, agg 2-1): Ivanovic settles action-packed League Cup semi-final|
|Milan 0 Lazio 1: Inzaghi future plunged into further doubt|
|Neymar dreaming of ending Brazil´s home hoodoo|
|South Africa 1 Ghana 2: Late Ayew winner seals qualification|
|Senegal 0 Algeria 2: Mahrez and Bentaleb dump Senegal out|
|Bocchetti poised to join Milan on loan|
|De Rossi suffers calf injury|
|Montano accuses Oldham of double standards after Evans saga|
|Bojan out for the season with ruptured cruciate|
|Cameroon v Ivory Coast: Renard defends Yaya Toure|
|Yanga-Mbiwa makes Roma move permanent|
|Guinea v Mali: Quarter-final berth on offer in Mongomo|
|Thohir: Inter not reliant on European football|
|Bremen land Vestergaard|
|Allegri refuses to rule out Cassano move|
|Mexes handed four-game ban after Lazio dismissal|
|Joyce reveals Valdes´ inspirational team-talk|
|CAF announces AFCON venue switches|
|Alcacer commits future to Valencia|
|Postecoglou calls for Aussie ´energy´|
|Everton confirm Eto´o departure to Sampdoria|
|Pochettino to stick with Vorm despite cup error|
|Barcelona are not favourites against Atletico, says Luis Enrique|
|Allegri wary of Parma backlash in Coppa Italia|
|Zidane urges Real to tie Ancelotti down|
|FIFPro: Transfer system failing football|
|Anderlecht condemn Standard´s Defour banner|
|Australia 2 UAE 0: Socceroos ease into home final|
|Barca overhaul youth system|
|FIFPro demands clubs respect contractual obligations|
|Mahmoud targeting World Cup place with Iraq|
|Fabregas wants Chelsea to show winning mentality|
|Rangers borrow £10m from Ashley´s Sports Direct|
|Lyon face anxious wait over Lacazette|
|Undermanned Lazio recall Perea|
|Ki wants South Korea to prove their superiority|
|Ghana´s Gyan wary of South Africa|
|Mashaba urges South Africa to attack|
|Benitez: Napoli deserved to win|
|Pacos de Ferreira 1 Benfica 0: Leaders fail from the spot|
|Serie A Review: Higuain at the double in controversial Napoli win, Udinese see off Empoli|
|I´m glad Rochdale haven´t made the news - Hughes|
|Getafe 2 Celta Vigo 1: Hosts come from behind for first win in 10|
|Real hit back at media reports over transfer dealings|
|Rochdale 1 Stoke City 4: Joy and angst for Bojan as Premier League side progress|
|Turkish Super Lig Review: Kuyt at the double in Fenerbahce win, Besiktas back on track|
|Senegal v Algeria: Morale is high, insists Gourcuff|
|Cassano leaves beleaguered Parma|
|Copa del Rey Preview: Atleti look to overturn Barca advantage, Espanyol wary|
|Atletico Madrid v Barcelona: Griezmann targets second-leg fightback|
|Sheffield United v Tottenham: Clough expects fired-up Spurs for second leg|
|Cape Verde 0 Zambia 0: Stalemate sends both sides out|
|Democratic Republic of Congo 1 Tunisia 1: Both teams qualify for quarter-finals|
|FA Cup fifth round: Middlesbrough handed Arsenal test|
|South Africa v Ghana: Must-win game for Mashaba´s men|
|Parma v Juventus: Serie A leaders strong favourites to reach semi-finals|
|Van Praag planning to stand for FIFA presidency|
|Inter snap up Brozovic|
|Van Persie unsure of long-term United future|
|Broken metatarsal rules El Shaarawy out for at least six weeks|
|FIFA: No disciplinary proceedings against Real|
|No Plan B if Guardiola goes - Rummenigge|
|Millwall take Hooiveld on loan|
|Chile v United States: Klinsmann has high hopes for young stars|
|Carver to lead Newcastle until end of season|
|Shenaishil taking positives from last-four exit|
|Neymar happy with life at Barca and Messi relationship|
|Lucas Silva ready for life at Real|
|Milan ´always with Inzaghi´ - Menez|
|Rodriguez living the dream at Real|
|Stielike expecting Australia in final|
|Mourinho not dwelling on Bradford defeat|
|Schweinsteiger under no pressure to extend Bayern contract|
|Herd heads to Wigan on loan|
|Inter defensive duo suffer hamstring tears|
|UAE coach Ali eyes Asian Cup final|
|Gattuso dreaming of managing Rangers|
|Fiorentina agree return of Gilardino on loan|
|Sakho hits back at critics|
|South Korea 2 Iraq 0: Kim books sixth Asian Cup final place|
|Sturridge could return against Chelsea|
|Zinnbauer backs Drobny as Hamburg first choice|
|Drogba targeting Chelsea stay|
|Postecoglou confident Australia squad can progress|
|UEFA does not have the courage to run against me - Blatter|
|Foster: Anichebe unplayable|
|Australia v UAE: Japan´s absence a boon for Asian Cup hosts|
|Milan v Lazio: Injury-hit visitors aiming for back-to-back wins|
|Trezeguet confirms retirement|
|No ´major problems´ with Nicolas Frey´s head wound|
|Strootman injury not "serious" - Garcia|
|No Paraguay, USA for retiring Riquelme|
|Saint-Etienne did not try to play football - Blanc|
|Primeira Liga Review: Sporting move within one point of Porto|
|La Liga Review: Parejo downs Sevilla, Resino starts with a point|
|Serie A Review: Juve go seven points clear as Roma draw again|