Cubs' Justin Steele: Throwing side session Tuesday

Steele (forearm) is throwing a bullpen session Tuesday, Jordan Bastian of MLB.com reports.

Steele appears to be tracking toward a return from the 15-day injured list when first eligible this Saturday against the Orioles, assuming the Cubs aren't going to ask him to make a minor-league rehab start. The 27-year-old has progressed without issue so far in his recovery from a mild left forearm strain.