Lionel Messi was stretchered off with what looked like a serious ankle injury after the Argentina forward and Gerard Pique scored in Barcelona's 2-1 victory at Atletico Madrid Sunday. Messi celebrated the 10th anniversary of his arrival to Barcelona with a 13th-minute opener before Raul Garcia headed home an equalizer for the host in the 25th. Pique calmly controlled a corner kick inside the Atletico area to fire home the 33rd minute winner, but Barcelona's victory was marred when World Player of the Year Messi exited on a stretcher during stoppage time with a right ankle injury. Atletico finished with 10 players after Tomas Ujfalusi tripped Messi in full flight. The Argentina forward kept his face covered the entire time while being carried off the pitch. Messi did not fracture his ankle according to initial tests, Barcelona coach Pep Guardiola said late Sunday. The Spanish champion won at the Vicente Calderon stadium for the first time since the 2006-'07 season and bounced back from its first Spanish league defeat. Earlier, Juanma Mata and Pablo Hernandez scored first-half goals as Valencia beat Hercules 2-1 to maintain its perfect start and go top of the league with nine points. Spain forward Mata opened after two minutes before Hernandez made it 2-0 from a free kick in the 24th minute. Former France striker David Trezeguet scored his first goal for Hercules, which was coming off a 2-0 victory over Barcelona, with a penalty before halftime. Real Madrid, which beat Real Sociedad 2-1 Saturday, is second with seven points while Barcelona, Atletico, Espanyol and Villarreal have six points. Nilmar scored two first-half goals to lead Villarreal to a 2-1 win at Levante, which pulled one back through Felipe Caicedo in stoppage time. Henrique and Ariel Nahuelpan scored second half goals as Racing Santander beat Zaragoza 2-0. Sevilla late Sunday beat Malaga 2