Rob Gronkowski's Mom Gave Him a Birthday Spanking

Ken Chin@@thekenchinSocial Media StaffMay 17, 2014

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Rob Gronkowski's birthday was this week (May 14), and his mother helped him celebrate. 

She donned some Zubaz pants and grabbed a bat. 

Based on everything we've seen from Gronk, this doesn't surprise us one bit.

Don't forget the ice bath.