** Shares in United Internet UTDI.DE and its mobile communications subsidiary 1&1 1U1.DE rise sharply, as a trader points to an "El Espanol" report on Telefonica TEF.MC negotiating a purchase of 1&1
** Both stocks gained more than 10% before paring some gains, with 1&1 now up 9.2% and United Internet up 10.5% at 1024 GMT
** Telefonica shares are up 5.3%
** Telefonica Germany and United Internet told Reuters they did not want to comment
(Reporting by Hakan Ersen, writing by Bernadette Hogg)
((bernadette.hogg@thomsonreuters.com))