Reggie Bush

Reggie Bush hasn’t done much in two weeks, and the 49ers made his absence for Sunday’s game at Arizona official Saturday when the team announced that Bush did not make the trip with his teammates and will instead stay in Santa Clara to continue rehab on his calf injury.

Bush had been listed as doubtful on the team’s Friday injury report. Bush was injured early in the season opener and hasn’t practiced since. Earlier this week, 49ers coach Jim Tomsula said Bush was “looking really good” but is probably only up to 80 percent speed.