Chelsea captain Reece James has suffered injury and could be out for weeks

Chelsea stars Reece James and Trevoh Chalobhah have both suffered hamstring injuries

Mauricio Pochettino will be concerned following injuries to his two defenders ahead of their EPL clash with West Ham

Reece James suffered a hamstring injury in training on Wednesday afternoon. Although, Captain James is having the injury assessed after picking up the problem during a session today.

Chelsea are hoping to discover the extent of the damage ahead of their Premier League clash this weekend.

The 24-year-old had returned to fitness ahead of the new season, was named new skipper and started Chelsea's season opener against Liverpool on Sunday.

James was withdrawn after 76 minutes at Stamford Bridge but head coach Mauricio Pochettino eased any initial concerns.

Meanwhile, Chelsea have confirmed injury to Trevoh Chalobah which has also comes as a significant blow.

Chalobah, according to the Athletic, had 'previously sustained a minor hamstring problem' and had 'aggravated the issue in training.

Trevoh Chalobah suffered the injury during Chelsea's pre-season game against Fulham last month in USA.