Cade Horton Injury: Throwing bullpen session Tuesday

Horton (rib) will throw a bullpen session Tuesday, Bruce Levine of 670TheScore.com reports.

Horton is slated to throw 30 pitches at mid-level intensity. The rookie right-hander could still get added to the Cubs' NLCS roster, should they rally to advance past the Brewers. Horton hasn't pitched since Sept. 23 due to a right rib fracture.