Schalke head coach Jens Keller has refused to discuss rumours linking Lukas Podolski to the club.
Reports in England and Germany have speculated Podolski is set for a loan move from Arsenal to Schalke, with the Bundesliga club's general manager Horst Heldt reportedly in London to discuss the deal.
The German media also believe Schalke are set to purchase Polish midfielder Waldemar Sobota from Slask Wroclaw but Keller would not be drawn on either potential signing ahead of his side's clash with Hannover.
"Well we've talked about a lot of players and we won't say anything about anyone in particular," Keller said on Friday.
"There are a few players on our list and we will see what we can do about it and what possibilities there are."
Schalke's season has begun badly with just a solitary victory, plus two draws and a loss from four matches in all competitions.
Keller's team gave up a lead at home against Greece's PAOK on Wednesday to draw 1-1 in the first leg of their UEFA Champions League qualifying play-off, while they have notched a draw and a loss in the Bundesliga so far.
The only win Schalke have managed was a 2-0 triumph over Noettingen in the DFB Pokal and Keller has claimed his players are hurting.
"Well the guys are not crazy, they are aware of the fact that they aren't completely performing to their best and they aren't happy about that," Keller said.
"So no one said, 'well I was great and others weren't'.
"I mean, of course, it's not like that.
"They're all critical of themselves and that's good.
"And I have always said the team has the right character, we just have to make the transition to the pitch.
"And that's what counts in football. No one has ever won by talking."
But Schalke's 42-year-old head coach remains convinced his team is improving.
Keller had told the media after Schalke's 1-1 draw with PAOK that the first half against the Greeks was 'outstanding', which drew some criticism from fans and pundits alike.
While Keller conceded he may have overstated his team's first-half performance, he maintained he had been pleased with what he had seen.
"That I called the first half against Salonika outstanding was the wrong word," Keller said.
"But I stick to it. I am very happy with the appearance before the break."
|Coach: J. Keller|
for M. Meyer 69'
for M. Höger 78'
for J. Farfán 87'
|Allegri lauds Pogba performance|
|Messi pays homage after record-breaking day|
|Messi the record breaker|
|Serie A Review: Top two both victorious|
|Taylor hints that knee injury not as bad as first feared|
|Ligue 1 Review: Lyon stumble against Bastia|
|Van Gaal critical of United despite win|
|Lazio 0 Juventus 3: Pogba and Tevez star as champions dominate|
|Wenger frustrated by wasteful Arsenal defeat|
|Barcelona 5 Sevilla 1: Messi breaks La Liga record as Barca cruise|
|Garcia delighted with Ljajic display|
|League One Review: Swindon close the gap at the top, Yeovil off the bottom|
|Messi breaks La Liga goal record|
|Ancelotti: Isco a ´perfect´ Modric replacement|
|Bundesliga Review: Wolfsburg slip helps move Bayern well clear|
|Rooney revels in success of counter-attack ploy|
|Tiago: Malaga scalp proves we´re great|
|Arsenal 1 Manchester United 2: Rooney seals Van Gaal´s maiden away win|
|Reus injury angers Klopp|
|Schweinsteiger pays tribute to Bayern fans|
|Pellegrini salutes Toure´s attitude|
|Hughes laments Stoke´s slow start|
|Allardyce frustrated after Everton defeat|
|We deserved more - Redknapp|
|Irvine: Yacob can have no complaints|
|League Two Review: Luton run ended by Burton, Wycombe go top|
|Eibar 0 Real Madrid 4: Relentless Real win again|
|Poyet defends Cattermole over Cambiasso tackle|
|Dyche hails Burnley resolve|
|Martinez hails ´satisfying´ Everton triumph|
|Pearson sure of Leicester survival|
|Gomis earns Monk forgiveness for late miss|
|Pardew full of praise for Sissoko|
|Mourinho lauds ´beautiful´ Chelsea display|
|Scottish Premiership Review: Guidetti strikes again for Celtic, top four all win|
|Championship Review: Bamford denies Mackay´s Wigan, Derby extend lead|
|Aston Villa v Southampton: Koeman eyes international swagger|
|Newcastle United 1 QPR 0: Skipper Sissoko seals fifth straight win|
|Leicester City 0 Sunderland 0: Hosts´ goal drought continues|
|Stoke City 1 Burnley 2: Ings at the double as visitors hold on|
|Atletico Madrid 3 Malaga 1: Unconvincing champions halt in-form visitors|
|Everton 2 West Ham 1: Osman celebrates landmark with winner|
|Manchester City 2 Swansea 1: Toure seals comeback win for champions|
|Chelsea 2 West Brom 0: Yacob sees red as leaders march on|
|Paderborn 2 Borussia Dortmund 2: Reus injury leads to Dortmund capitulation|
|Bayern Munich 4 Hoffenheim 0: Champions move seven clear|
|Bielsa not concerned by Marseille investigation|
|Mancini buoyed by Inter preparations|
|Benitez rules out Liverpool return|
|Hertha prepared for Kalou absence|
|Montella confident despite Fiorentina pressures|
|Injured Alex out of Milan derby|
|Pochettino wants versatility from Dier|
|Van Gaal will not take risks with Falcao fitness|
|A-League Review: Sydney keep pressure on at top|
|K. League Review: Sangju Sangmu all but down, Gyeongnam remain in danger|
|J.League Review: Gamba deny title-chasing Urawa, Ventforet ensure safety|
|Rabiot thrilled with PSG return|
|Sterling wants long Liverpool stay|
|Poyet: I thought Cattermole would ´shoot´ me|
|Simeone: Cerci interest compliments Atletico|
|Blanc: ´I was confident´ of PSG win|
|Silva sidelined for crucial City-Bayern clash|
|Lambert would ´love´ to keep Vlaar, slams agent|
|Championship Review: Brentford up to fourth, Reading lose again|
|Athletic Bilbao 3 Espanyol 1: Aduriz back with a bang|
|Metz 2 Paris Saint-Germain 3: Lavezzi late show sends Blanc´s men top|
|Four clubs face UEFA investigation regarding overdue payables|
|Icardi can reach the top at Inter, says Milito|
|Klopp open to Premier League interest|
|Marseille sweat on fitness of Gignac and Alessandrini|
|Mansfield part company with Cox|
|Pochettino calls for Tottenham unity|
|Alaba targets January return|
|Milan v Inter: Mancini returns for derby showdown|
|Zidane ban overturned|
|Hughes optimistic on Bardsley and Pieters fitness|
|No room for error against Malaga - Simeone|
|Crystal Palace v Liverpool: Six-goal thriller still fresh in the memory|
|Koeman hopeful on Schneiderlin fitness|
|Khedira or Isco will replace Modric - Ancelotti|
|Costa fully fit after hamstring problems|
|Rodgers rules out early Origi arrival|
|Garcia unsure of Castan timeframe|
|Hull City v Tottenham: Dawson returns as Bruce´s men seek response|
|Luis Enrique: No talks over Messi future|
|Schweinsteiger in line for Bayern return|
|Kompany and Lampard fit for City|
|A-League Review: Zadkovich sees red after just 17 seconds in Glory win|
|FA to investigate Whelan comments|
|Mourinho relishing busy schedule|
|Allegri reveals Lazio talks|
|Caen president steps aside following arrest|
|Moyes sees Everton similarities at Sociedad|
|Whelan not racist - Bruce|
|Balotelli: The goals will come at Liverpool|
|Torres wants to be Milan top scorer|
|Milito backs Martino to lead Argentina to success|
|Gonalons signs new Lyon contract|
|Spurs need to give Pochettino time - Dawson|
|Walcott out of United clash, Welbeck a doubt|
|Poyet targeting cover for Van Aanholt|
|Messi happy at Barcelona - Bartomeu|
|Pardew plays down Perez-Shearer comparisons|
|Werder Bremen suffer Di Santo blow ahead of derby|
|Everton will not rush Stones - Martinez|
|Monk: Swansea will not recall Michu|
|Colombian Primera A Review: Santa Fe, Medellin still perfect in semis|
|Brazilian Serie A Review: Cruzeiro rally to beat Gremio|
|Lallana: ´I´ve got friends´ at Southampton|
|Boca Juniors 0 River Plate 0: Honours even in Superclasico|
|Costa Rican Primera Division Review: Alonso scores 10th goal in Alajuelense win|
|Guarani 3 Cerro Porteno 4: Late Ortigoza goal lifts Astrada´s men to summit|
|Defensa y Justicia 1 Newell´s Old Boys 0: Pellegrino saves late penalty|