Reports: 49ers placing star RB Christian McCaffrey on IR

(Photo credit: Kyle Terada-Imagn Images)
The San Francisco 49ers are placing All-Pro running back Christian McCaffrey on injured reserve because of calf tightness and Achilles tendinitis, according to multiple reports on Saturday.

McCaffrey had already missed the season opener and was scratched from Sunday's game against the host Minnesota Vikings. With the move to the IR, he is now required to miss at least the next fou