Sappelt, 26, came to the Cubs along with Ronald Torreyes and Travis Wood in exchange for Sean Marshall prior to the 2012 season. He hit just .240/.269/.280 this season and is a career .251/.301/.343 hitter in 274 plate appearances.
Rosscup, 25, was part of another major trade for the Cubs, as he came to Chicago from Tampa Bay along with Matt Garza. The Oregon native posted a 2.12 ERA with 14.6 K/9 and 4.4 BB/9 in 51 relief innings between Double-A and Triple-A this season, most recently whiffing 17 batters in 7 2/3 innings at Triple-A.
Steve Adams contributed to this post.