Liverpool signs Alexander Isak from Newcastle for reported British-record fee of 125 million pounds ($170 million)  Yahoo SportsAlexander Isak transfer: Liverpool sign striker in £125m British record deal from Newcastle  BBCLiverpool are new Galacticos after signing Alexander Isak  The TelegraphLiverpool complete signing of Alexander Isak  Liverpool FCLatest. Newcastle United sell Alexander Isak for a British record fee  Newcastle United