(CNN) -- Andres Iniesta could miss Spain's opening game at the World Cup after suffering a thigh injury in a warm-up match. 

The Barcelona midfielder set up two goals for Spain in their emphatic 6-0 win over Poland in Murcia on Monday, but was substituted after just 39 minutes. 

Iniesta missed a large chunk of Barcelona's season with a thigh complaint, but team doctors insisted the injury was only minor. 

"We substituted him because he had some discomfort in the back part of the thigh," Spain's team doctor Dr Oscar Celada was quoted as saying by the UK Press Association. 

"He didn't notice any tear and it has not got any worse. It was at the start of the match and as he wasn't comfortable, we made the change - it's a minor muscle injury. 

"We will calmly carry out tests on Wednesday, but we can initially rule out any muscle tear. It's a minor injury, but we have to take precautions," he added. 

Two of Spain's other injury doubts, Arsenal midfielder Cesc Fabregas and Liverpool striker Fernando Torres, both came on a substitutes against Poland -- and scored -- as they look to step up their fitness. 

It was Torres' first action since playing for Liverpool against Portuguese side Benfica back in April. 

"It was almost two months without playing since the Benfica game and I was really keen to come back," he said after the match. 

"They have let me play for a while today and it was great to go out there and score."  QUESTIONS:

Q1:
1. Did someone get hurt?
2. Did somebody sustain an injury?
3. Did someone hurt themselves?
Q2:
1. Who got injured?
2. Who sustained an injury?
3. Who was hurt?
Q3:
1. When was Andres Iniesta hurt?
2. When did Andres Iniesta get injured?
3. At what point did Andres Iniesta sustain an injury?
Q4:
1. What was wrong with Andres Iniesta?
2. How did Andres Iniesta hurt himself?
3. What was the problem with Andres Iniesta?
Q5:
1. Was Andres Iniesta's injury serious?
2. Did Andres Iniesta have a critical injury?
3. Was Andres Iniesta's injury considered a big deal?
Q6:
1. Has it been confirmed that Andres Iniesta's injury was minor?
2. Is there confirmation that Andres Iniesta was only minorly injured?
3. Is it certain that Andres Iniesta's injury was not serious?
Q7:
1. Who confirmed the gravity of Andres Iniesta's injury?
2. Who gave confirmation regarding Andres Iniesta's state?
3. Who backed up reports on how Andres Iniesta was doing?
Q8:
1. What did Andres Iniesta's doctor say?
2. What did Dr Oscar Celada say?
3. What statement did Dr Oscar Celada give?
Q9:
1. Is this the first game that Andres Iniesta has missed?
2. Is this Andres Iniesta's first time missing a game?
3. Has Andres Iniesta never missed a game before this one?
Q10:
1. Was anyone injured in addition to Andres Iniesta?
2. Besides Andres Iniesta, was anyone else hurt?
3. Did anyone other than Andres Iniesta sustain injuries?
Q11:
1. Who besides Andres Iniesta was hurt?
2. Who sustained injuries in addition to Andres Iniesta?
3. Who apart from Andres Iniesta hurt themselves?
Q12:
1. How long were Cesc Fabregas and Fernando Torres unable to play?
2. How long were Cesc Fabregas and Fernando Torres out for?
3. For what length of time did Cesc Fabregas and Fernando Torres' injuries prevent them from playing?
Q13:
1. Did Cesc Fabregas or Fernando Torres get a goal?
2. Between Cesc Fabregas and Fernando Torres, did one strike a goal?
3. Was a goal scored between Cesc Fabregas and Fernando Torres?
Q14:
1. Who scored a goal between Cesc Fabregas and Fernando Torres?
2. Between Cesc Fabregas and Fernando Torres, which was the one to mark a point?
3. Who scored, Cesc Fabregas or Fernando Torres?
Q15:
1. How many goals did Cesc Fabregas and Fernando Torres score?
2. What was the number of goals scored by Cesc Fabregas and Fernando Torres?
3. How many goals did Cesc Fabregas and Fernando Torres get between the two of them?
