Everton coaches were alarmed by Gylfi Sigurdsson’s statistics in Sunday’s hammering by Chelsea, Football Insider can reveal.

The Merseysiders were demolished 4-0 at Stamford Bridge on Sunday in a performance Carlo Ancelotti slammed as the worst of his reign so far.

An Everton source has told Football Insider that Sigurdsson was among those who did not emerge well from the post-mortem conducted by the club’s coaching staff and performance analysts.

According to Wyscout data, the midfielder failed to make a single tackle or interception during his 89 minutes on the pitch and registered just four sprints all game, the fewest on the pitch.

The Iceland international also barely touched the ball during the game in a further damning indictment of his contribution.

Ancelotti did not point the finger at any player specifically after the match, which was only his second-ever 4-0 defeat in his lengthy managerial career.

Sigurdsson, 30, captained the team at Chelsea in the absence of regular skipper Seamus Coleman.

But his display, in which he started on the left of midfield in the second half before moving into a more central position after the break, is likely to place his position under major threat.

Sigurdsson has made 23 league starts among 29 appearances in all competitions this season, but has scored only twice and provided just two assists.

Everton are next in action on Monday of next week against Liverpool at Goodison Park.

In other Everton news, it can be REVEALED that the club have agreed terms of blockbuster £19.4m new deal + bonuses.