Mark Trumbo will be sidelined for an extended period of time because of a stress fracture in his left foot.

The Arizona Diamondbacks said Trumbo will get a second opinion from Dr. Michael Lee in Arizona before a timetable for his return is determined. An MRI taken Wednesday revealed the injury after an X-ray showed no structural damage.

The MRI also revealed some plantar fasciitis.

Trumbo is hitting .210, although he was tied for the National League lead with seven home runs and was second with 19 RBIs before Wednesday's game against the Chicago Cubs.