Pittsburgh Steelers tight end Vance McDonald suffered a concussion in Sunday's game against the Arizona Cardinals, according to ESPN's Adam Schefter.
A second-round draft pick in 2013, the 29-year-old spent four generally underwhelming seasons with the San Francisco 49ers before moving on to the Steelers. In 48 games for the Niners, he caught 64 passes for 866 yards and seven touchdowns.
The fact San Francisco traded McDonald a little over eight months after signing him to a five-year extension speaks to how much he struggled in the Bay Area.
The Rice product didn't do much more in his first year with the Steelers, catching 14 passes for 188 yards and a touchdown in 10 games.