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Cubs designate Miguel Montero for assignment after his critical comments about Jake Arrieta

PITTSBURGH, PA - OCTOBER 07: Jake Arrieta #49 of the Chicago Cubs talks with Miguel Montero #47 of the Chicago Cubs on the pitcher's mound in the sixth inning during the National League Wild Card game against the Pittsburgh Pirates at PNC Park on October 7, 2015 in Pittsburgh, Pennsylvania. (Photo by Jared Wickerham/Getty Images)

WASHINGTON — Some harsh postgame comments to reporters on Tuesday may have put an end to a catcher’s career with the team on Wednesday.

Per multiple reports, the Cubs have designated catcher Miguel Montero for assignment before their game Wednesday with the Nationals.

Montero said goodbye to Chicago fans in a series of tweets Wednesday afternoon:

“To the city of Chicago
Dear fans, today I say goodbye to the greatest fans. I want to thank you for the support.
Thank you also to each staff member, it was an honor to play for the Chicago Cubs organization.
Chicago will always be in my heart
#WeAreGood
Miguel Montero”

This comes hours after Montero was critical of pitcher Jake Arrieta’s role in allowing seven stolen bases to the Nationals in a loss on Tuesday night.

“The reason why they were running left and right today because they know he was slow to the plate,” Montero said Tuesday night. “It really sucked because the stolen bases go to me, and when you really look at it, the pitcher doesn’t give me any time.”

In a radio interview Wednesday morning, Cubs first baseman Anthony Rizzo called Montero’s rant “unprofessional” and “selfish.”

The Cubs are calling up Victor Caratini from Triple-A to replace Montero.

This is a developing story. Check back for updates.