As mentioned in an earlier post, the Minnesota Twins will be wearing four sleeve patches this season. Normally they have three patches, but the All-Star game requires another patch. Right now, they wear two patches at a time, one being the All-Star game and the other being the base patch for the jerseys.
The earlier post did a poor job of showing the patches, so the purpose here is just to offer a closer view of patches:
All Star Game Patch, Road Patch (Both Road Jerseys)
Home Patch, Home Alternate Retro Patch
(All images from the Minnesota Twins Shop)