Jose Antonio Reyes has claimed that Sevilla can challenge for silverware following his move from Atletico Madrid.
The 28-year-old, who has signed a three-and-a-half-year deal, left the club in 2004 to join Arsenal.
"I'm back with a smile on my face from ear to ear," Reyes told reporters. "Today is one of the happiest days of my life.
"For me it is a special motivation to lift a trophy with Sevilla [and] with the team we have it's possible."
Reyes scored 21 goals in 86 appearances during his previous spell at the Sanchez Pizjuan.