Alejandro Sanz' "El Tren de los Momentos" U.S. tour has been postponed until November, a spokeswoman for Sanz tells

The first U.S. leg had been scheduled to begin at Las Vegas' Palms Casino June 6, with 15 stateside dates, plus a return swing in November. Ten dates have been rescheduled; additional shows will be announced shortly.

June concerts at Los Angeles’ Gibson Amphitheatre have been moved to November 16-17. The tour continues to San Diego’s Cox Arena Nov. 21, then to El Paso, McAllen, Dallas and Houston Nov. 23-Nov. 30.

Sanz will hit Miami’s American Airlines Arena Dec. 8 and New York’s WaMu Theater at Madison Square Garden Jan. 25. The July 8 Chicago show at the Rosemont Theatre has been moved to Feb. 3.

Sanz’ spokeswoman said the tour was being postponed under orders from doctors in Spain that the singer, who has been touring in Latin America, take "absolute rest" before embarking on the U.S. leg of his tour.

Calls to Warner Music Latina were not returned as of press time.