Cubs third baseman Mike Olt will not join the team for September roster expansion reports MLB.com, due to a hamstring injury that ended his season at Triple-A Iowa.
Olt has been sidelined since Aug. 19 and was not included with the team's callups in the first few days of the month. Olt hit .139/.222/.353 in 187 at-bats with the Cubs, but was hitting .302 in 106 at-bats prior to the injury at Triple-A.