When the San Francisco 49ers play the Arizona Cardinals in Week 4, there will be plenty of familiar faces on the opposing sideline. A total of six former 49ers players are currently with the Cardinals in some capacity, though not all of them will play on Sunday.
Quarterback Blaine Gabbert will be inactive as he is the third quarterback on Arizona’s depth chart, while guard Alex Boone won’t play due to a pectoral injury he sustained in Week 3 against the Dallas Cowboys. Boone is a recent addition after the Minnesota Vikings made him a surprise cut at the start of the season.