Poland legend Zbigniew Boniek launched the astonishing jibe at Andy Carroll and stated that his eight years old grand son is a better player than Britain's most expensive footballer
Boniek, who has been described by Pele among the greatest 100 players of all-time, said: 'My grandson Mateo moves better on the pitch than Andy Carroll.
'He has better co-ordination. He is very good at golf and tennis.'
Carroll became Britian's most-expensive footballer of all-time in January 2011 after sealing a £35million move to Liverpool.
But the striker failed to find his feet at Anfield and was deemed surplus to requirements by Brendan Rodgers who shipped the gangly forward out on loan to West Ham.
He was a second-half substitute in England's 5-0 defeat of San Marino on Friday and will hope to start against Poland on Tuesday night.
Boniek is lauded as one of Poland's best-ever players and is set to become the president of the Polish FA. But his sly dig could backfire if Carroll finds the net against his country in Tuesday's Group H encounter.