Messi's Champions League promise sounded 'like a threat' - Klopp

ESPN FC's Craig Burley highlights Roberto Firmino's defending from the front as pivotal to Liverpool getting a result against Barcelona.

Jurgen Klopp has admitted that Liverpool must "suffer" at the hands of Barcelona if they are to stop Lionel Messi from carrying out his "threat" to bring the Champions League trophy back to the Camp Nou.

Liverpool, last season's beaten finalists, face the Spanish champions in Wednesday's semifinal first-leg after cruising past Porto in the previous round to book a place in the last four.

But after destroying Manchester United in the quarterfinals with a virtuoso performance in the home leg a fortnight...