Lazio risk missing out on striker Mauro Zarate.

The agent and brother of Zarate, Sergio Zarate, said: "We are awaiting a response from (president) Claudio Lotito before April 30, the date by which the president should close the deal with Al Sadd.

"If this does not happen, we will be free to speak with any team. The will of Mauro is, however, to continue with Lazio ..."