The experienced midfielder is delighted to have returned to "the best league in the world" and has made it clear he remains ambitious.
Rafael van der Vaart claims he wants to win La Liga after signing for Real Betis.
The 32-year-old has completed a return to Spain's top flight following two deeply disappointing seasons in the Bundesliga with Hamburg and was unveiled to supporters and the media on Tuesday.
The hugely-experienced Netherlands international made it clear he still has lofty ambitions after agreeing a deal with the newly-promoted side.
"I spoke with the coach and we want to win the league," he said wryly to reporters.