Pope, of Burnley, above, and United’s Henderson are on Chelsea’s radar

Kepa Arrizabalaga’s future as Chelsea’s No 1 goalkeeper is in doubt after the club began scouting for new signings.

The Spaniard, 25, joined from Athletic Bilbao in 2018 for £71 million but has not lived up to his tag as the world’s most expensive goalkeeper after a solid first season with the club.

Willy Caballero, 38, is the second-choice keeper but he is out of contract at the end of the season and concern has been growing over Arrizabalaga’s performances. He tamely let in the winner in the 1-0 defeat by Newcastle United, and his failure to prevent Gabriel Martinelli scoring in the 2-2 draw with ten-man Arsenal on Tuesday also drew criticism.

Frank Lampard was unhappy with many facets of Chelsea’s failure to twice