This is an update to my previous post about former Cub first baseman Mark Grace, who was arrested last month for his second DUI in 15 months.

It has been reported that the charges against Grace will be upgraded to aggravated DUI, a felony, because Grace’s driver’s license had been suspended because of the prior DUI arrest at the time of the new arrest, and he was only permitted to drive with a vehicle equipped with a breath alcohol ignition interlock device (BAIID).  When he was arrested, Grace was not driving a vehicle equipped with such a device.

According to reports, Grace had a BAC of 0.095, slightly above the legal limit of 0.08.

From looking at some Arizona legal websites (here and here), it appears that if Grace is found guilty of the charge, he is facing a mandatory minimum of four months in prison…