Barcelona, May 14 (EFE).- Two to three weeks is the estimated period of time in which Lionel Messi will be unable to play due to a strained hamstring in his right leg. This could have the Argentine star out for the rest of the season, with only three matches left in La Liga. br br EFE TV -Madrid- 17:55 GMT. br br Keywords: efe-barcelona-football-soccer-messi-injury. br br Tel: +34 913 467 200. br br E-mail: tvefe@efe.es. br br Web: www.efeservicios.com br br br br © EFE 2013. Está expresamente prohibida la redistribución y la redifusión de todo o parte de los contenidos de los servicios de Efe, sin previo y expreso consentimiento de la Agencia EFE S.A.