Derbyshire fans are waiting to see Harvey back on the field

Australian all-rounder Harvey, 35, had his application for British citizenship turned down last week because of a recent conviction for drink-driving.

The ECB has refused to register the all-rounder, who can now only represent Derbyshire as an overseas player.

The county will attempt to have that reversed at a hearing next Wednesday.

But if that goes against them, they are willing to take further steps.

Chief executive Tom Sears said: "We are disappointed in the ECB's stance and believe it is contrary to natural justice.

"Ian has Home Office permission to remain and work in this country indefinitely and would not be prohibited from pursuing any other form of employment.

"We will be legally represented at next week's meeting and in the event of further refusal we will consider all other options, including that of a legal challenge.

"Ian also has the full support of the Professional Cricketers' Association but we remain hopeful that it does not become necessary to pursue a legal course.

Harvey played earlier in the season as a temporary overseas replacement for Travis Birt.

But Birt, also an Australian, has returned to fitness, leaving Derbyshire no room on their overseas quota as their side already includes skipper Simon Katich.

The county previously pointed to the precedent set by the governing body's decision to allow Ottis Gibson to play for Leicestershire in 2004 while awaiting British citizenship.