England’s Ashes preparation has been rocked after spinner Jack Leach was ruled out of the series with a back stress fracture.

Leach claimed four scalps during England’s 10-wicket victory over Ireland at Lord’s this week, but developed low back symptoms during the match.

A subsequent scan on Sunday revealed a stress fracture in the lumbar region of the spine, which will rule him out of all five Ashes Tests.

“Spinner Jack Leach has been ruled out of the LV= Insurance men’s Ashes series with a low back (lumbar) stress fracture,” an England statement said.

“England will announce a replacement for the Ashes series in due course.”