Several NFL teams are sending representatives to go see Colin Kaepernick's workout this Saturday in Atlanta, but as of right now, it doesn't appear the Colts are one of them. This from the NFL Communications department:
Indianapolis is expecting to get Jacoby Brissett back this week against Jacksonville, has backup Brian Hoyer on a three-year deal with Chad Kelly behind him, so the quarterback room is a little crowded. That said, it is interesting that the Colts don't appear to be interested enough to even send someone to take a look. We'll see if that changes in the next day or so.