As a refresher, the longtime duo married back in October of 2006 and share one child together, 5-year-old son Brendan.
The X-Men: Apocalypse actor and Duff announced the decision in a statement:
"It is with tremendous sadness that we have come to the decision to divorce. We enter this next phase with continued friendship, love and respect for one another and the shared focus of caring for our son. We ask that you respect our and, most importantly, our child's privacy during this time."
We didn't see this one coming!!
[Image via WENN.]