Manchester City manager Manuel Pellegrini is sweating on the fitness of David Silva for the club's Premier League title run-in.
The Spain international was taken off on a stretcher with his right leg in a brace following an innocuous challenge with Billy Jones in City's 3-1 win over West Brom on Monday.
City now lie a point behind Chelsea and six adrift of leaders Liverpool, with a game in hand on both, but face an anxious wait to discover whether Silva will be able to feature again this season.
Pellegrini revealed the attacking midfielder had been playing with an ankle injury in recent weeks.
"Silva has a problem with his ankle. We'll see how he is (on Tuesday)," Pellegrini told Sky Sports.
"He has played the last three games with an ankle problem.
"The problem with David is he played the last game with that pain. I don't know if that pain increased or if he has a new problem."
Pellegrini was delighted to see his side return to winning ways against West Brom after dropping points against Liverpool and Sunderland.
City were not always at their fluent best on Monday, but were able to triumph with a degree of comfort as Argentinians Pablo Zabaleta, Sergio Aguero and Martin Demichelis found the net.
"I think we played a very good first 45 minutes. Maybe the goal they scored made us a bit nervous and in the second half we were not so clear with the ball," added Pellegrini.
"We keep the result and that is the most important thing.
"(The table is) exactly the same thing but we have three points more. If Liverpool win three games and 14 in a row they will be the champions.
"Our duty is to try win our games and in that way Liverpool can feel the pressure.
"We have to do our work and our work is to win our games."
|26||M. Demichelis||22' 36'|
|Coach: M. Pellegrini|
for S. Agüero 64'
for David Silva 69'
for E. Džeko 89'
|Andre Gomes can play in Busquets role, insists Luis Enrique|
|Aguero´s dangerous tackle scared me, says Conte|
|Guardiola: We are killing the players|
|Bournemouth announce plans for new stadium|
|Former Bayern Munich and Real Madrid star Ze Roberto to play beyond 43rd birthday|
|Barcelona friendly awaits new Chapecoense coach Mancini|
|Arsenal are privileged to have Sanchez and Ozil - Monreal|
|Watzke denies agreement to discuss Aubameyang transfer with Madrid|
|Paris Saint-Germain v Nice: Champions hunting down shock leaders|
|Giggs tells Rashford how to end his goal drought|
|Manchester United without Shaw, Smalling for Tottenham clash|
|Willems inks PSV renewal|
|Costa and Conte scoop Premier League awards|
|Conte detained on suspicion of assault|
|Strootman ban for derby ´simulation´ overturned|
|Mourinho demands more goals from Rooney|
|Bobo preserves Sydney´s unbeaten start in Cup final rematch|
|Luis Enrique: I don´t dare predict if Messi will renew|
|Mourinho admits changing style for United|
|Sanchez talk is disrespectful, says Conte|
|Sassuolo 0 Genk 2: Visitors seal top spot|
|Sterling back for City as Guardiola predicts tough Leicester test|
|Mourinho still the ´Special One´ for Pochettino|
|Matic return leaves Conte with Fabregas dilemma|
|Guardiola expects greater impact from City youngsters next season|
|Klopp defends Karius after Bournemouth blunder|
|Pirlo visits Chelsea - but Conte is not signing him|
|Ronaldo, Modric rested for Deportivo clash|
|Tuchel hails returning Reus|
|Klopp has ´no idea´ on Sturridge return|
|´My players are intelligent and good people´ - Zidane on Ronaldo´s taxes|
|Atletico to play at ´Wanda Metropolitano´|
|Real Madrid to rest Benzema and start Morata against Deportivo|
|Ancelotti rules out Draxler bid as Bayern prepare for barren transfer window|
|Ighalo calls on Watford to sign Mikel|
|Pardew wants defender and striker to bolster Palace survival push|
|Moyes: M´Vila doesn´t have the fight for Sunderland|
|Leipzig only built to earn Red Bull money - Watzke|
|Shenhua director blasts CSL imports... but desperate for Tevez deal|
|Ribery: Bayern my last club in Europe|
|Hughes targets Arsenal fans to help Stoke end dismal away run|
|83 suspects, 98 clubs ´impacted´ in football abuse probe|
|Fowler pleads with Liverpool to keep ´top quality´ Sturridge|
|Reus ´100 per cent different´ on comeback|
|Ibrahimovic ´super happy´ for rejuvenated Mkhitaryan|
|Vertonghen: Football needs Mourinho|
|Title triumph went to Leicester´s heads, admits Ranieri|
|Conceicao named new Nantes coach|
|LaLiga lead means nothing - Zidane|
|Chapecoense add two stars to badge in wake of air disaster|
|Blatter accuses Infantino of lack of respect|
|Austin injury compounds Puel´s misery|
|Gestifute publishes further evidence of ´Ronaldo tax compliance´|
|Pioli eyes further Inter improvement|
|´I feel s***´ - Van Dijk blasts Southampton after Europa League collapse|
|Mourinho marvels at Mkhitaryan mentality after Zorya stunner|
|Southampton 1 Hapoel Be´er Sheva 1: Late Van Dijk leveller not enough as visitors progress|
|Inter 2 Sparta Prague 1: Eder double sends hosts out on a high|
|Vieira wanted Arsenal coaching opportunity|
|Vieira hopes MLS experience puts him in frame to replace Guardiola|
|Mkhitaryan: I waited a long time for this|
|Zorya 0 Manchester United 2: Mkhitaryan magic sends Mourinho´s men through|
|Ranieri urges Leicester players to fight for their futures|
|Cellino banned for 18 months over McCormack transfer|
|Koeman demands reaction from dropped Barkley|
|Tevez unsure on Boca future amid China speculation|
|Bradley vows to fight for his job at Swansea|
|Koeman speaks out on Depay, Schneiderlin links|
|Wenger unconvinced by World Cup expansion plans|
|Kovac brothers sign new Frankfurt deals|
|Selling Sturridge would be a mistake, says Rush|
|UEFA opens disciplinary proceedings against Besiktas, Dynamo Kiev|
|Filipe Luis suffers thigh tear|
|Kashima Antlers 2 Auckland City 1: Late Kanazaki header the difference|
|Suarez´s Barca renewal already done, says Bartomeu|
|Barcelona invite Chapecoense for Joan Gamper Trophy|
|Arsenal would have a chance against Real Madrid, insists Wenger|
|FIFA chief Infantino calls for zero tolerance on child abuse|
|Sanchez will not leave Arsenal for China - Wenger|
|Dybala delighted with Juventus return|
|Rashford desperate to learn from Ibrahimovic|
|Weigl not ready for Real Madrid - Tuchel|
|Why Zidane must drop Ronaldo at the Club World Cup|
|Barton: They built me up into a Neymar-Messi type|
|Shakhtar aware of Barca interest in Srna - Fonseca|
|Mets hitting coach believes Tebow can make it to MLB|
|Aubameyang reiterates Madrid dream after Bernabeu show|
|Zidane praises Benzema after 50th Champions League goal|
|Aubameyang deserves 99 per cent of credit - Reus|
|Neymar: There´s only one Ballon d´Or winner and it´s Messi, not Ronaldo|
|Magiera hails Legia victory as for ´all of Poland´|
|Tuchel thought Aubameyang had blown chance to equalise|
|Pochettino confident Spurs are back on track|
|Santo hails Porto´s mature performance|
|Lyon proved we can compete with Europe´s best - Genesio|
|Slutsky unsurprised by apparent Premier League interest in Dzagoev|
|Jardim frustrated as Monaco finally lose|