Lynn (knee) is scheduled to be reinstated from the 15-day injured list to start Wednesday against the Reds, Katie Woo of The Athletic reports.
The 37-year-old threw 80 pitches while giving up five runs over 3.2 innings during a rehab start with Triple-A Memphis on Sept. 1, and his next game action will come with the big-league club. Lynn landed on the shelf at the end of July due to knee inflammation, but he'll be back with the Cardinals for a few starts down the stretch.