Mike Brown's concussion is assessed by head injury specialists

Harlequins have brought in head injury specialists to assess Mike Brown, the England full-back, who continues to suffer from concussion symptoms nearly 12 weeks after being knocked out against Italy.

Conor O’Shea, the Harlequins director of rugby, has already confirmed Brown will not play in their remaining league games against Bath and Newcastle.

Brown, 29, sustained the concussion in a sickening collision with Andrea Masi at Twickenham on Feb 14.

After being stood down for the Test against Ireland, Brown returned to play in England’s final matches in the Six Nations Championship aga…