Lindsey suffered a fracture of the fourth metacarpal when hit by a 92-mph fastball from Arizona starter Daniel Hudson last week.
After initial X-rays, doctors believed Lindsey's hand would heal with rest. But after further tests, it was decided to insert a pin to facilitate proper healing.
"After four to six weeks I'll be playing ball," said Lindsey, the 33-year-old who parlayed a Pacific Coast League batting title in his 16th Minor League season into his first Major League callup, only to have his season cut short by the injury.
Lindsey said he hasn't heard from Hudson since the incident.
"I heard he got hurt," Lindsey said of Hudson, who has an inflamed finger tendon. "Maybe he's dealing with other things. I've never been thrown at. I've only been hit on the hand twice in my career."
Despite having his season cut short, he hopes he'll still have a job in the organization next year.
"Hopefully they have plans for me," he said. "If not, I'll just play myself into another opportunity."