Spain striker Diego Costa could return from injury in his nation's final pre-FIFA World Cup friendly against El Salvador on Saturday.
Costa has not appeared since limping off in Atletico Madrid's UEFA Champions League final defeat to city rivals Real Madrid last month.
The Brazilian-born forward has been battling muscle problems in recent months, but Spain coach Vicente del Bosque will be hoping the 25-year-old will be fit enough to give his side an extra attacking dimension as they seek to defend their World Cup title.
And while a start in Spain's World Cup opener against the side they beat in the 2010 World Cup final - the Netherlands - may be unlikely, Costa could see some game time this weekend as he looks for match sharpness.
Club-mate Juanfran - who has an injury problem of his own in the form of a troublesome ankle - has tipped the striker, widely linked with a switch to Chelsea, to have a big tournament.
"He (Costa) is great and I'm convinced he will be one of the great players of the World Cup," Juanfran said.
Spain have opted to play only two pre-tournament friendlies, and begun with a 2-0 win over Bolivia last Friday.
Fernando Torres scored from the penalty spot before Andres Iniesta's late goal sealed a win that was not as comprehensive as Del Bosque would have liked.
But a stronger team will be expected this time out as Del Bosque moves closer to picking his XI for the Netherlands clash.
The former Real Madrid boss will be wary of a slow start at the World Cup, with Spain stunningly shocked by Switzerland in their first game of the 2010 event.
As history shows, they recovered superbly to be crowned World Cup winners for the first time, but another first-up defeat could be costly in a tough Group B that also contains Chile and Australia.
And while Australia - the lowest-ranked team at the World Cup in 62nd - should not present much of a test to Spain, Chile are sure to enjoy the familiar South American surroundings.
However, El Salvador, ranked 68th in the world, are unlikely to present any real challenge to Spain.
They have won just one of their last eight matches - a slender 1-0 triumph against Haiti at the CONCACAF Gold Cup - but were valiant in defeat against the Ivory Coast on Wednesday.
Arturo Alvarez's late penalty ensured they only lost 2-1, but Spain should present a much sterner test in Maryland, US.
|Coach: Albert Roca|
for K. Santamaría 57'
for A. Álvarez 65'
for A. Flores 75'
for R. Menjívar 83'
for J. Barrios 87'
|We will leave our soul in the final - Ramos|
|Hart left broken by ´very lucky´ Madrid goal|
|Zidane hails victorious Madrid|
|Pellegrini disappointed to miss out in tie of few chances|
|Real Madrid 1 Manchester City 0 (1-0 agg): Zidane´s men set up 2014 final repeat|
|Lucescu: Shakhtar ready for hardest fight|
|´Benteke cost almost Villarreal´s budget!´ - Marcelino expects major Liverpool test|
|AFC Champions League Review: Big-spending Jiangsu Suning dumped out|
|Kompany off injured in Champions League semi|
|Ter Stegen: I want to stay at Barcelona|
|Vardy will thrive for England at Euro 2016, says Smith|
|Lemina eyes key role at Juventus|
|Cerezo hits back at Vidal´s ´ugly´ swipe|
|Bacca happy at Milan without European football, says agent|
|Long backs Saints to end Spurs hoodoo|
|West Ham´s Sullivan labels Leicester lucky|
|Alba admires Atletico team work|
|Ranieri deserves an honour - Italian prime minister|
|Klopp bullish ahead of semi-final showdown|
|Ranieri´s 96-year-old mother: Now my son is King of England|
|Lovren: Europa League final would save Liverpool´s season|
|BREAKING NEWS: Dembele set for long FA ban over Costa altercation|
|AC Milan ultras call for Galliani´s head over ´blatant mockery´ of fans|
|Emery wants ´inspired´ Konoplyanka in Europa League semi-final|
|Wendell Lira blames Puskas Award trip for club woes|
|Joe Cole in line for Tampa Bay Rowdies move|
|Fuchs: I could kiss Hazard after title-clinching goal|
|Hiddink turned down Leicester before Ranieri appointment|
|Arsenal did not hold their nerve in title race - Smith|
|Cazorla targets City comeback for Arsenal|
|Webb could face lifelong ban as FIFA opens proceedings|
|Smith backs Leicester to become Premier League ´force´|
|Toni to retire after Juventus clash|
|Iwobi reveals key to dream Arsenal rise|
|Allen expects to reach Europa League final|
|McLeish leaves Zamalek after 65 days|
|Football fans pile bets on Burnley to win Premier League after Leicester´s shock success|
|Ranieri: Rich teams will win for next 10 to 20 years|
|Pity we could not reward Guardiola for his three years, says Bayern captain Lahm|
|Madrid revenge no factor for Simeone|
|Copa Libertadores Review: Pumas UNAM, Atletico Nacional advance to quarter-finals|
|Adelaide want Leicester City friendly|
|Tottenham have proven critics wrong - Eriksen|
|Ferdinand ´turned on´ by Simeone´s Atletico|
|Wilson hoping Brighton experience enough for United|
|Griezmann urges team-mates to keep feet on the ground|
|We´ve learned from past errors - Fernandinho|
|Payet cleans up West Ham awards|
|´We don´t need superstars´ - Ranieri|
|Vidal: Bayern are still the best in the world|
|Guardiola: I have given my life to Bayern|
|Simeone: Atletico have eliminated two of the world´s three best teams|
|Leicester owner reveals Vardy signing doubts|
|Bayern feel cheated, says Rummenigge|
|Boateng: Bayern solely to blame for Champions League exit|
|Zabaleta confirms calf injury|
|´It was a siege´ - Torres proud of Atletico after holding off Bayern|
|Liverpool v Villarreal: Klopp demands improvement in Anfield return|
|Bayern Munich 2 Atletico Madrid 1 (2-2 agg): Griezmann clinches final berth with away goal|
|AFC Champions League Review: Victory, Al Hilal and Al Ain qualify with wins|
|Courtois ´100 per cent´ committed to Chelsea, denies PSG contact|
|Pellegrini: Madrid are more than Ronaldo|
|Trabzonspor handed four-game stadium ban|
|Morata muscle tear ruled out|
|Sevilla v Shakhtar Donetsk: Vitolo fired up to seal historic Europa League final spot|
|UEFA has opened Pandora´s box with Kosovo decision - Serbian FA president|
|Infantino claims positive response to FIFA funds plan|
|Aubameyang reiterates Real Madrid desire|
|Huth and Fellaini charged by FA|
|Cahill hopes for FA understanding after fiery Tottenham clash|
|Kehl slams Dortmund fans over Hummels boos|
|Mourinho congratulates Ranieri for winning ´my title´ with Leicester|
|Confusion reigns as City confirm Toure travels to Madrid|
|Mata: United can finish fourth and win FA Cup|
|Missing Champions League final would be a failure - Zidane|
|City without Toure for Real Madrid semi-final|
|Infantino hails Leicester title as ´the magic of football´|
|Redknapp talks up ´South Coast Mariners´ role|
|Real Madrid can cope without Benzema - Navas|
|Ronaldo returns for Madrid, but Benzema will miss Bernabeu clash|
|Ranieri wants happy players for title defence|
|Kosovo win vote to become UEFA member nation|
|Drinkwater: Leicester title is mad, bonkers|
|Morgan predicts tear-stained Premier League trophy|
|Transfer market travails and the empire striking back: What next for Leicester City?|
|Toure trains ahead of Real Madrid clash|
|Guardiola´s rotation policy a potential own goal - Magath|
|Ballack backs Atletico to prove too strong for Bayern|
|Messi agreed with Olympics snub - Martino|
|Benzema misses Real Madrid open training|
|Ranieri: We want to improve|
|Ronaldo: Like it or not, I´ll go down in history|
|Strootman delighted with return to Roma starting XI|
|Laporte dismisses Manchester City rumours|
|Ranieri has silenced critics, says Kisnorbo|
|Van Gaal: I am one of the best managers in the world|
|Santa Cruz: Guardiola will bring better football to City|
|Guardiola always a bit anxious - Kahn|
|Kisnorbo: No one will forget Leicester´s fairytale run to Premier League glory|
|Rodgers backs Klopp´s handling of Sturridge|
|Wright: No one would have touched Kante and Co.|
|Smalling: Captaining United an honour|
|No surprises in Mexico´s 40-man Copa squad|
|Juanfran: We are a team of details|
|Stepanenko: My friendship with Yarmolenko is over|
|Leicester fan Martinez: I am glad it did not happen in Germany|
|Schwarzer has shown age is just a number - Kisnorbo|
|Mangala: City want to make history in Champions League|
|Lineker struggling to believe Leicester success|
|Carrick: Top four not gone yet|
|De Gea named United´s player of the year|
|Dundee 2 Dundee United 1: Visitors relegated|
|King delighted to crown Leicester rise with title|
|Ranieri: I knew I would win a title eventually!|
|Soccer world reacts to Leicester´s remarkable Premier League title|
|Serie A Review: Strootman starts as Roma fight back again|
|Leicester success a ´good omen´ for Selby|
|Kane: Chelsea celebrated like they won title|
|Thumping Man City, edging Tottenham and five matches that won Leicester the Premier League|
|Vardy marvels at Leicester´s finest hour|
|Ranieri called me to say thanks, reveals Hiddink|
|Leicester did the impossible - Morgan|
|Terry: Leicester title triumph gives hope to smaller sides|
|Pochettino proud as Spurs fall short|
|Savage: Leicester title a key moment in Premier League history|