Chelsea's Martinez Update: Recovery Timeline After Fractured Jaw Surgery

• Emi Martinez underwent surgery for a fractured jaw after a head injury during a match against Everton.
• Chelsea manager Xabi Alonso confirms Martinez is 'doing better' post-surgery.
• Martinez suffered the injury in a collision with Everton defender Jarrad Branthwaite.
• The timeline for Martinez's return to play is yet to be determined.
• Martinez was rushed to the hospital and received oxygen on the pitch after the incident.