Euro 2012 final goalscorers Juan Mata and Jordi Alba a have been included in the European Champions plans ahead of the London Games.
Mata is joined by Chelsea colleague Oriol Romeu in the 21-man party to face Senegal and Mexico later this month.
Mata's involvement in Ukraine and Poland will not raise questions from Stamford Bridge officials, however, after he agreed his commitment to Spain's Olympic plans with the west London club.
He said earlier this month: 'I have confirmed with Chelsea that I can play the Olympics.
'It's something I have agreed with the Spanish federation, and I don't want to change.
'My dream is to play and win the gold in London. After winning a lot with Chelsea last season, that would be another great honour.'
The 24-year-old played just three minutes at the tournament but he scored the fourth and final goal in Sunday's 4-0 final win over Italy in Kiev.
After celebrating Spain;s triumph in Madrid on Monday in front of thousands of fans, Mata will have just four days rest before linking up with his 2012 team-mates.
Also, Manchester United boss Sir Alex Ferguson will have to make do without David de Gea in his pre-season plans after his No 1 goalkeeper was drafted into Spain's preliminary Olympics squad.