The perennial All-Pro posted a photo of his new addition on Twitter Friday, before the Steelers beat the New York Giants 20-12 in its first preseason game at MetLife Stadium in East Rutherford, N.J.
The photo was taken from the team bus.
"Stash game," Brown tweeted, including an 'OK' hand emoji.
The tweet came days after Brown posted a closeup of his face on social media. The caption for that photo read: "Beard or no beard ; Stash no stash #commentbelow #stashnostash."
Brown has trimmed down his beard but he oiled up the corners of the 'stash for a vintage look.
He didn't play in the preseason contest.
Brown has been keeping up a vintage theme this offseason. In July he showed up at Steelers camp sitting in the backseat of the classic Rolls-Royce, complete with a chauffeur at the wheel.
He has shown off at camp, using his blazing speed to repeatedly reel in touchdowns.
AB: "We all come here to set a standard." pic.twitter.com/oF5GSVUSaF— Pittsburgh Steelers (@steelers) August 8, 2017
Brown also welcomed his fifth child this offseason, posting a photo with new son Apollo on Aug. 1.
Pittsburgh hosts the Atlanta Falcons at 4 p.m. on Aug. 20 at Heinz Field.