The Cubs announced July 5 that Miller (elbow) has resumed a throwing program in Arizona, MLB.com reports.
Chicago isn't completely ruling Miller out from returning from the 60-day injured list in September, but his main focus is getting back to full health for the start of the 2027 campaign after undergoing surgery last October to repair a torn right UCL and flexor tendon. Back in February, Miller signed a two-year, $2.5 million contract with the Cubs that includes a club option for 2028.