Manchester City look likely to have Yaya Toure back from injury when they visit Crystal Palace in the Premier League on Sunday.
The influential midfielder limped out of the 3-2 defeat Liverpool 12 days ago with a thigh injury and has not featured since, missing games against Sunderland and West Brom.
City are six points behind leaders Liverpool with a game in hand, so Toure's return would be a huge boost ahead of their run-in, which begins with a tricky looking fixture at Selhurst Park against a Palace side on a five-match winning run.
Pellegrini hinted that Toure could be available as he omitted the Ivorian in a list of injured players in Friday's press conference, before hailing the importance of Sergio Aguero, who recently returned from an injury of his own.
"We have (David) Silva, Jesus Navas and (Matija) Nastasic out with injury - all of the other players are fit," he said.
"David is working, improving. With Navas' ankle, it's the same. These three players are injured - we don't know how much longer for David.
"It's good to have Kun (Aguero) back. He's a top player and makes an important difference. We played a lot of games without him but always he's very important for the team."
City will have one eye on events at Anfield before their game on Sunday, with title rivals Liverpool and Chelsea going head-to-head in a an eagerly-awaited encounter.
With Chelsea taking on Atletico Madrid in the second leg of their UEFA Champions League semi-final next Wednesday, Jose Mourinho has hinted he may field a weakened side, but Pellegrini knows that is out of his hands.
"I don't know what Chelsea are going to do," he said. "The only important thing and the only thing we can do is to win our game and that is what we're going to do from now until the end of the season.
"I think that every team tries to do the best thing for their teams. We must win our games."
|Coach: T. Pulis|
for M. Chamakh 69'
for C. Jerome 69'
for Y. Bolasie 73'
|Walker juggles music, football careers in Sweden|
|Song to face ´brother from another mother´ Fabregas|
|Adriano announces Le Havre deal|
|Pardew braced for Old Trafford test|
|Lescott unfazed by City reunion|
|Tskhadadze appointed Georgia coach|
|United to finish top three - Ferdinand|
|Allardyce: Stamford Bridge stalemate saved my job|
|Southampton need three January signings, says Watson|
|Liverpool can make Champions League, says fanzine editor|
|Walsh: Hull clash crucial for Leicester|
|Toure, Aubameyang and Enyeama make shortlist for African gong|
|Docherty backs Chelsea to win two-horse race|
|Liverpool could benefit from Hyypia influence - Scales|
|Saudi Arabia name Asian Cup squad|
|Forty-year-old Cahill no problem for Postecoglou|
|Wenger criticism baffles Redknapp|
|Leicester must strengthen in window - Walsh|
|United not title contenders - Docherty|
|Koeman: Southampton youngsters will get a chance|
|Dyche empathises with Liverpool striker crisis|
|Cagliari turn to Zola|
|Rooney thanks Van Gaal for Christmas break|
|Cruzeiro offer Paulinho Tottenham exit chance|
|Carlisle´s wife grateful to Burnley|
|Katebe called up to Zambia AFCON squad|
|Cape Verde name AFCON squad|
|Finke names much-changed Cameroon squad|
|Grant omits World Cup troublemakers for AFCON|
|Blackpool striker Ranger goes AWOL|
|Allardyce relishing Mourinho meeting|
|Ashley fails to increase Rangers stake|
|Crystal Palace v Southampton: Koeman calls for focus|
|Warnock targeting striker in January|
|Chelsea v West Ham: Adrian vows visitors will attack|
|Heskey signs short-term deal at Bolton|
|Everton v Stoke City: Martinez eyes strong form|
|Juninho defends David Luiz|
|Burnley v Liverpool: Dyche defends Rodgers ahead of Turf Moor test|
|Arsenal v QPR: Wenger eyes festive momentum|
|Liverpool are growing in confidence, says Rodgers|
|Redknapp: Austin future could depend on survival|
|Martinez wants Everton consistency|
|Barca want Neymar until 2020, says agent|
|Jones undeterred by pressure of Liverpool starting role|
|Allardyce ´knows how to beat managers´ - Carroll|
|Jones playing for a new contract|
|China select Evergrande spine for Asian Cup|
|A-League Preview: Koren tips City to build|
|Khedira keen to fight for Real spot|