Chicago Cubs Star Ben Zobrist's Wife Files for Divorce

Chicago Cubs star Ben Zobrist and his Christian pop singer wife are headin' for Splitsville ... 'cause Julianna Zobrist has filed for divorce ... TMZ Sports has confirmed.

There's been speculation about their relationship after Zobrist left the team last week due to "personal reasons" ... and Julianna deleted her Twitter and scrubbed her IG of most of their pics together.

Court records in Illinois show the singer filed the docs on Monday ... confirming the split is in the works.

Ben was the World Series MVP when the Cubs won in 2016. He's also a 3-time All-Star.

Julianna is a pretty successful singer -- 1 single from her 2016 album, "Shatterproof," hit the Billboard charts.

She also famously performed "God Bless America" at Wrigley Field before Game 4 of the 2016 World Series (the Cubs ended up losing that game).

Zobrist and Julianna have been married since 2005 and 3 kids together -- a son and 2 daughters.