Holders Spain take on Italy, Croatia and the Republic of Ireland in Group C of the European Championships. Here, Sportsmail profiles all 23 members of their squad.
The men in charge: coach Vicente del Bosque (left) and captain Iker Casillas (right)
1964 (winners), 1980 (first round), 1984 (runners-up), 1988 (first round), 1996 (quarter-finals), 2000 (quarter-finals), 2004 (first round), 2008 (winners).
Iker Casillas (Real Madrid) Born: 20.05.81. Squad No: 1.
Spainís most-capped player and undisputed first choice, captain Casillas is considered one of the worldís best. Sometimes suspect dealing with aerial threats, but a brilliant shot-stopper, he denied Arjen Robben what seemed a certain goal in 2010 World Cup final.
Pepe Reina (Liverpool) Born: 31.08.82. Squad No: 23.
Reina rarely gets a look-in, but has performed well when called on and is something of a penalty expert. A popular figure in the dressing room, grabbing the microphone and acting as comedy compere at victory celebrations.
Victor Valdes (Barcelona) Born: 14.01.82. Squad No: 12.
Barcelonaís No 1 has ironed out the howlers that plagued his early career to become La Ligaís best over last three seasons. Another great shot-stopper, the shaven-headed Catalan excels in distribution from the back and is an important feature of Barcaís patient play.
Sergio Ramos (Real Madrid) Born: 30.03.86. Squad No: 15.
Athletic and tough-tackling, Ramos has switched to central defence from right back for club and country this season. Can be tactically suspect, but is a potent goal threat from set pieces with powerful headers.
Alvaro Arbeloa (Real Madrid) Born: 17.01.83. Squad No: 17.
A clean-cut and steady full back, comfortable on both flanks, mainly used on the right by Real and Spain this season. Played up front as a youngster, can be surprisingly skilful in front of goal.
Gerard Pique (Barcelona) Born: 02.02.87. Squad No: 3.
Commanding presence in central defence, also a threat when joining attack as an auxiliary striker chasing late goals, has great timing in the tackle and is an astute passer. Forms a solid partnership with club mate Puyol, but likely to partner Ramos at Euro 2012.
Jordi Alba (Valencia) Born: 21.03.89. Squad No: 18.
Alba has made a strong case to be handed the left-back role vacated by Joan Capdevila with his barnstorming performances for Valencia. Pacy and tenacious in the tackle, he is adept at getting forward to send over dangerous crosses.
Javi Martinez (Athletic Bilbao) Born: 02.09.88. Squad No: 4.
Del Bosque surprised many by taking Martinez to the 2010 World Cup over Villarrealís Marcos Senna. A silky, yet combative player a holding midfield or central defensive role, he has developed enormously in the past two years. Could start alongside Pique at the back in Carles Puyol's absence.
Juanfran (Atletico Madrid) Born: 09.01.85. Squad No: 5.
Let go by Real Madrid as a youngster, Juanfran signed for city rivals Atletico in January after an excellent five seasons at Osasuna. Converted from a wide midfielder into a marauding right-back this season, he earns his place with Bilbao's Andoni Iraola out injured.
Hot favourites: Spain are the reigning champions
EURO 2012 SQUADS
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REPUBLIC OF IRELAND
Raul Albiol (Real Madrid) Born: 04.09.86. Squad No: 2.
Despite being well down the pecking order at Real Madrid, Albiol is still a regular in Spain squads as central defensive cover. A reliable performer when called upon.
Xavi (Barcelona) Born: 25.01.80. Squad No: 8.
Midfield orchestrator Xavi has set new standards for a central playmaker, leading Spain to victory at Euro 2008 and the 2010 World Cup and Barca to 13 trophies under coach Pep Guardiola. His passing ability, vision and composure on the ball are unrivalled.
Xabi Alonso (Real Madrid) Born: 25.11.81. Squad No: 14.
The hard-tackling Alonso has stamped his authority on the Real Madrid side following his move from Liverpool. A highly-respected member of Spainís squad, he helps give Xavi the space to perform and likes shooting from distance.
Andres Iniesta (Barcelona) Born: 11.05.84. Squad No: 6.
A hugely gifted ball player, Iniesta epitomises Barcaís swift, counter-attacking style. Has suffered niggling injuries in recent seasons, but returned to his best at 2010 World Cup and always remembered for his extra-time winner in the final.
Cesc Fabregas (Barcelona) Born: 04.05.87. Squad No: 10.
A quick passer, commanding presence on the ball and threat from anywhere around the box, Fabregas may finally have carved out an automatic starting spot in Spainís highly competitive midfield. Has looked hungry for goals and created a host for his team mates since returning to Barca from Arsenal.
Sergio Busquets (Barcelona) Born: 16.07.88. Squad No: 16.
Busquets, 23, has similar passing ability to Xavi, Iniesta and Fabregas and is a tenacious ball winner. Del Bosque has said he is the player he would most like to be compared to, but a weakness for play-acting dents his reputation at times.
David Silva (Manchester City) Born: 08.01.86. Squad No: 21.
A tricky and pacy left-footer with an eye for goal, Silva has had two impressive seasons at Manchester City after leaving Valencia. Complained about being sidelined under Del Bosque, but may have done enough to claim a place in the starting 11.
Santi Cazorla (Malaga) Born: 13.12.84. Squad No: 20.
Missed out on Spainís successful 2010 World Cup campaign because of a back injury but has returned looking as dangerous as ever in his favoured attacking midfield role. Another gifted central playmaker Del Bosque can call on to inject creativity and pace.
Injury problems: Regular starters Puyol and Villa are both out
Fernando Torres (Chelsea) Born: 20.03.84. Squad No: 9.
Scorer of the goal against Germany that fired Spain to Euro 2008 glory, Torres suffered a spectacular loss of form after moving to Chelsea from Liverpool in 2011. Was dropped for the Venezuela friendly in February. May squeeze into squad if he rediscovers his touch.
Juan Mata (Chelsea) 28.04.88. Squad No: 13.
Another left-footer who has flourished in England, Mata has shone at Chelsea even as the London club struggled this season. Can both score and create goals and is a useful player to bring on to freshen up the attack.
Fernando Llorente (Athletic Bilbao) Born: 26.02.85. Squad No: 19.
The hulking striker is every defenderís worst nightmare, excellent in the air and skillful with his feet. Makes a useful contrast to Spainís diminutive, nippy midfielders, his prowess at holding the ball up under pressure makes him a valuable target man.
Jesus Navas (Sevilla) Born: 21.11.85. Squad No: 22.
Zippy winger and bane of many a left back, Navas took his rightful place in the squad at the 2010 World Cup after shaking off anxiety attacks that stopped him travelling too far from his Andalucian home. Another useful impact player.
Alvaro Negredo (Sevilla) Born: 20.08.85. Squad No: 11.
Strong in the air, has a thunderous left-foot shot and his record of five goals in seven appearances is impressive. Has gone off the boil for Sevilla in recent months, but retains a chance of a place in the squad.
Pedro Rodriguez (Barcelona) Born: 28.07.87. Squad No: 7.
After an outstanding breakthrough season in 2009-10, the pacy winger was included in Del Bosque's World Cup-winning squad. He continued that form through 2010-11, scoring in the final as Barcelona won the Champions League. Had lost his place for club and country this season but has returned to form of late and benefits from David Villa's injury.