With a number of departures in the secondary this offseason, there was a chain reaction of jersey switches that took place in the Pittsburgh Steelers locker room. Mike Mitchell getting cut freed up the no. 23 jersey previously worn by Joe Haden, who took the number 21 when he signs with Pittsburgh.
That allowed the 21 jersey to become available, coveted by Sean Davis, who idolized Sean Taylor. He took that number, freeing up his no. 28 jersey for Mike Hilton to take, which allowed Nat Berhe to keep his no.