Left with no margin for error, Spain is evaluating how to play against Honduras following its opening World Cup loss, in which Fernando Torres and Cesc Fabregas failed to make the starting line-up.
Switzerland's 1-0 victory on Wednesday (Thursday morning AEST) means the European champion cannot lose Monday's (Tuesday morning AEST) Group H match at Ellis Park if it wants to advance to the second round.
Xabi Alonso reiterated that Spain will stick to its possession-based game, but that coach Vicente del Bosque was considering making changes.
"Nothing's decided yet. Logically, the coach is analysing (the game)," Alonso said Friday from the team's training base. "It's hard to evaluate, especially since the system worked well in the warmup games coming in. The coach makes the decisions and whatever he decides, the players back him 100 per cent."
Del Bosque was criticised by former coach Luis Aragones, who led Spain to the 2008 European Championship title, for picking two holding midfielders - Alonso and Sergio Busquets - and only David Villa as striker. That left Torres and Fabregas - rated as two of the world's best players - out of the lineup.
"With the last coach, I was player No. 12 and he showed that with his decisions. This coach has opted for other players at times," Fabregas, an unused substitute against the Swiss, told Marca. "I'm not getting the minutes I would like, but it's not affecting my work habits."
With Del Bosque promising to make a change, defender Gerard Pique said Fabregas could provide what the Spanish were lacking.
"A lot of touch, the ability to get into the area and goals," Pique said. "If the coach opts for him, he'll help us very much."
Torres came on for the last half hour at Moses Mabhida Stadium in Durban to show his right knee was completely recovered after surgery.
"Fernando brings so much potency with his speed, how he finishes off in front of goal and the calmness he brings us up front," Alonso said. "I think his knee problems are in the past."
Torres scored several times during what was at times a tense 60-minute practice on Friday with Andres Iniesta training apart from the team and fullback Sergio Ramos absent to rest his sore ribs.
Del Bosque revealed little about his starting 11 against Honduras with the team practicing after passing drills. The usual laughter that is usually heard was mostly replaced by Del Bosque shouting instructions.
Pique said team morale was high despite the bad start, though any questions over the possibility of facing Brazil in the next round were ignored.
"Everything seems so dramatic after our defeat - that we have to change our style. But this is the way we play ... we know how all of this works," Pique said. "We need to qualify, and there's no margin for error. People know that. We're sure we're capable of doing it."
Alonso and Pique expected Honduras to sit back and rely on counter-attacks, like Switzerland. The United States played the same way in beating Spain at last year's Confederations Cup, the team's only other loss in its past 50 games, with both coming under Del Bosque.
"They were two complicated games, and very similar," Alonso said. "They played the same style, backing up every time we went forward. We need to try and break it down the best way possible."
Chile and Switzerland lead the group with three points, while Honduras and Spain both have zero.
Spain hero Andres Iniesta claims he never lost faith in achieving FIFA World Cup success, despite a frustrating season with injuries and a bad start for Vicente del Bosque's side in South Africa.