Captain Phil Jagielka made a saving block but then deflected a Tomas Rosicky shot into his own net as Everton dropped a 2-0 decision to Arsenal.
Phil Jagielka will be assessed game by game but is most likely out for New Year's Day.
Roberto Martinez will be sweating on the fitness of a number of players ahead of the clash with Newcastle at St James’ Park in GW19.
Phil Jagielka was solid in Everton's 3-1 win over QPR on Monday, finishing with nine fantasy points despite not getting a clean sheet.
Everton looked to be on the losing end of the derby with their fierce rivals, Liverpool, but a late strike by club captain Phil Jagielka in stoppage time rescues a point for the Toffees in a 1-1 draw.
Roberto Martinez will not rule out Phil Jageilka for Everton's clash with Manchester United on Sunday, but he did state the defender's chances were unlikely.
In an effort to boost match fitness, Roberto Martinez says a behind closed doors friendly has been arranged next week for Phil Jageilka.
Roberto Martinez stated in a recent press conference that Everton center back Phil Jagielka is making strides in recovering from his hamstring injury, but the boss will not rush him back to action.
Phil Jagielka has been ruled out of Everton's match this weekend with West Ham United due to a hamstring injury the center back picked up in training this week.
Roberto Martinez confirmed that Phil Jagielka could be out for as long as four weeks as the Everton center back recovers from a hamstring injury.