Thielen (hamstring) didn't practice Wednesday, Mike Kaye of The Charlotte Observer reports.
The Panthers haven't said that Thielen has experienced a setback with his hamstring, but he's now sat out two consecutive practices after he was previously a non-participant in last Friday's session before being ruled out ahead of a 23-22 win over the Saints. He resumed practicing Oct. 23 and will need to be activated from injured reserve next week even if he's not ready to play, unless the Panthers want him ruled out for the rest of the season. Thielen's absence from practice to begin Week 10 prep suggests that he doesn't have great odds of playing this Sunday against the Giants in Munich.