Real Sociedad coach Jagoba Arrasate said his club is not over confident despite a 2-0 lead over Lyon in their Champions League play-off.
Sociedad look set to claim a berth in the Champions League group stage for the first time in a decade after beating Lyon 2-0 away from home in last week's first leg.
Despite the handy advantage, Arrasate insisted the club will be firmly focused on Wednesday's second leg to ensure they progress.
"Maybe outside the club it has been euphoria, but inside it hasn't," Arrasate said.
"When the game finished we were happy, but at the same time cautious.
"Afterwards we were focused on the (league) game against Elche, and now it's time to focus on Lyon, but we are absolutely aware we have to play another great match if we want to go through.
"So inside the club there has not been any euphoria."
If Sociedad needed any extra motivation, this game gives them the chance to exact revenge on the club that ended their last European campaign.
The two sides met in a last-16 tie in 2004, the only other occasion Sociedad made it to the group stage, with Lyon winning 2-0 on aggregate.
This time it is Sociedad who are on top, but Arrasate is still wary of their French opponents.
"We know we have a two-goal advantage, that it is important," he said.
"In the first match we were able to contain Lyon and, in part, that was a credit to our team.
"We are aware of our advantage, but we are cautious, because we know we have to play another good match to succeed."
Lyon coach Remi Garde, meanwhile, said his side will be going all out to turn the tie around.
"Champions League play-off matches are never easy," he said.
"We didn't show up for the first game. But tomorrow's second leg will be a different story - we will try to play as well as Real Sociedad did during the first leg.
"But whatever happens, the club will remain strong after this match. We hope to advance to the group stages and we will work on a plan to achieve that aim."
|24||De La Bella|
|11||C. Vela||37' 67' 90+1'|
for A. Griezmann 72'
for Xabi Prieto 79'
for Bergara 84'
|Eredvisie title not won yet - Depay|
|Sterling eager to catch Arsenal cold|
|Monk: Ki will be sorely missed|
|Bruce looking to recall Hull duo from loan spells|
|Allardyce: Pearson deserves time|
|Burns double downs Sydney|
|Real Madrid 2 San Lorenzo 0: Spanish giants complete triumphant 2014|
|McCoist: Departures sucking life out of Rangers|
|Hargreaves urges Sterling to stay put|
|Herediano 1 Deportivo Saprissa 1 (agg 3-5): Draw hands visitors consecutive titles|
|Tribulietx basks in Auckland City´s heroics|
|San Lorenzo´s Bauza applauds Ancelotti|
|Wenger: Sanchez a Footballer of the Year candidate|
|Chelsea like United´s treble-winning team - Hargreaves|
|Ancelotti: Copa del Rey victory inspired Real´s stunning run|
|La Liga Review: Catalan clubs triumph|
|Milan on right track - Inzaghi|
|Estoril 1 Vitoria Guimaraes 0: Kleber checks visitors´ momentum|
|Eredivisie Review: PSV in Eagles demolition, AZ downed at home|
|Garcia fumes at missed handball|
|Serie A Review: 10-man Milan frustrate Roma, Cesena rescue point|
|Roma 0 Milan 0: Hosts denied despite Armero red|
|Ligue 1 Review: PSG held at home, Monaco claim fourth win in a row|
|Bundesliga Review: Bremen off bottom with Dortmund win, Augsburg beat Gladbach|
|Blanc frustrated after drab stalemate|
|League Two Review: Moore´s Hartlepool tenure begins with draw|
|Championship Review: Blackpool hit for six, Middlesbrough slip up|
|Luis Enrique enjoying Pedro´s resurgence|
|Scottish Premiership Review: Aberdeen move to second, St Mirren misery continues|
|Koeman delighted with clinical Southampton|
|Pochettino tips in-form Kane for England call-up|
|Dortmund are ´idiots´ - Klopp|
|Allardyce hails ´outstanding´ Downing|
|Young admitted fault after Agbonlahor dismissal, says Lambert|
|Pearson not concerned with speculation|
|Bruce: Hull simply not good enough|
|Everton must improve - Martinez|
|Irvine rues sloppy defending|
|Cruz Azul 1 Auckland City 1 (2-4 on pens): Plucky New Zealanders claim third|
|Austin an example for young strikers - Redknapp|
|Dyche takes pride in White Hart Lane defeat|
|Arabian Gulf League Review: Al Shabab strike late to sink Al Dhafra, top two win|
|Swansea win vindicated changes, says Monk|
|Van Gaal frustrated by dropped points at Villa|
|Paris Saint-Germain 0 Montpellier 0: Champions frustrated by Courbis´ men|
|League One Review: Wilson gains landmark win as Bristol City and Swindon falter|
|Hull City 0 Swansea City 1: Monk´s men celebrate rare away win|
|Southampton 3 Everton 0: Koeman´s side back to winning ways|
|Aston Villa 1 Manchester United 1: Visitors held despite Agbonlahor dismissal|
|QPR 3 West Brom 2: Austin treble lifts hosts out of drop zone|
|Barcelona 5 Cordoba 0: Suarez opens Liga account in emphatic win|
|Tottenham 2 Burnley 1: Lamela stunner wins it for Spurs|
|West Ham 2 Leicester City 0: Carroll, Downing seal the points|
|Werder Bremen 2 Borussia Dortmund 1: Hosts off the bottom by adding to Klopp´s woes|
|Kerala Blasters 0 Atletico de Kolkata 1: Last-gasp Rafique seals inaugural title|
|Warnock fumes over disallowed goal|
|Pellegrini hails Silva quality|
|Betis announce Mel return|
|Huntelaar signs Schalke extension|
|Juventus v Napoli: Allegri backs Tevez to make difference|
|Stoke City v Chelsea: Mourinho calls for adaptability|
|Manchester City 3 Crystal Palace 0: Silva strikes twice as champions go joint-top|
|A-League Review: City snatch Melbourne derby honours, Glory pull further clear|
|Mancini: Inter can finish third|
|Sterling revels in Golden Boy award|
|Pellegrini: You never win a title in December|
|Rodgers bemoans Sanchez snub|
|Ayew confident Marseille can beat title rivals|
|Mercier: San Lorenzo won´t roll over to Real Madrid|
|Lukaku: I´m still 21|
|Mainz bemoan ´tragic´ loss to Bayern|
|Rojo ruled out for Villa trip|
|Lopetegui thrilled with Porto response|
|Guardiola pays tribute to battling Mainz|
|Orlando City sign Shea|
|Porto 4 Vitoria Setubal 0: Brahimi inspires late drama|
|League Two Review: Burton held, Cambridge snatch late point|
|Millwall 0 Bolton Wanderers 1: Pratley nets winner for visitors|
|Lens 2 Nice 0: Cyprien and Coulibaly lift hosts|
|Celta Vigo 0 Almeria 1: Nolito miss proves costly|
|Heerenveen 0 ADO Den Haag 0: Visitors´ winless streak extended|
|Mainz 1 Bayern Munich 2: Guardiola´s men break Christmas points record|
|Blanc unconcerned by league placing|
|United targeting title - Carrick|
|Soldado ´ashamed´ at not performing for Spurs|
|Ramos to wait and see on fitness for final|
|Garcia wins appeal against two-match ban|
|Hart signs new City contract|
|Hereford United wound up|
|Pearson given touchline ban for fan row|
|FIFA confirms third-party ownership ban|
|Inter v Lazio: Ranocchia wants to build momentum|
|Rodgers hits out at Sterling criticism|
|Pardew backs Colback to shine against Sunderland|
|Minimal recovery time a concern for Bauza|
|Liverpool v Arsenal: Wenger out to avoid repeat performance|
|Newcastle United v Sunderland: Pardew calls for a derby day show|
|Adebayor available for Burnley clash|
|Athletic Bilbao v Atletico Madrid: Simeone´s men eye fitting response|
|Targett commits to Southampton|
|Garcia vows to attack Milan|
|City still without strike trio for Palace test|
|Courtois set for return at Stoke|
|Di Maria set for possible United return at Villa|
|Neymar in frame for Cordoba match|
|FIFA to publish Garcia report|
|Liverpool will not appeal Balotelli ban|
|A-League: Newcastle Jets 2 Adelaide United 1|
|Fournier eyes Fekir stay and attacking reinforcements|
|Abidal announces retirement ahead of potential Barca return|
|Redknapp: Crouch deal not possible|
|Klaassen laments Ajax ´off-day´|
|Wenger not fearful of another Anfield nightmare|
|Whelan wants to extend Stoke stay|
|Kalou eyes Hertha exit|
|Fellaini: Belief growing of title tilt at United|
|Benteke: Villa transfer request was a mistake|
|Gerrard urges Sterling to stay put|
|Pardew calls for calm ahead of derby clash|
|Kerala Blasters v Atletico de Kolkata: Luis Garcia talks up team ahead of final|
|Monk wants three new Swansea signings|
|Koeman plays down Sneijder link|
|Howard targets another World Cup|
|Inzaghi prepared for Stadio Olimpico atmosphere|
|Toronto expect Defoe to return|
|Rodriguez suffers injury setback|
|Klopp denies Dortmund departure plans|
|Copa del Rey Review: Bilbao and Elche edge through, Madrid derby beckons|