According to http://cincinnati.com/blogs/reds/
Joey Votto (left knee) returned to Cincinnati and had a minor procedure last night to remove a piece of floating cartilage, Reds trainer Paul Lessard said.
It will add 7-to-10 days to Votto’s recovery time. The original projection was 3-to-4 weeks from the date of Votto’s surgery July 17, for a torn medial meniscus.
The procedure Friday night, by Reds medical director Dr. Tim Kremchek, took about six minutes.