It’s even hotter than was expected on a record-breaking day at Levi’s Stadium for Sunday’s San Francisco 49ers game — and the Niners may have reason to have a gripe with the NFL over it. San Francisco made a late switch to its throwback uniforms for Sunday’s game,

The 49ers along with their fans are going to be sweating it out in their red and gold for Sunday's game against the Cardinals, with temperatures expected to be in the 90s at kickoff at Levi's Stadium in Santa Clara.

Another fourth-quarter collapse led to another San Francisco 49ers’ loss against an NFC West rival on Sunday. Two weeks after faltering on the road to the Los Angeles Rams, the 49ers blew a 10-point lead and exited with a 24-23 loss to the Arizona Cardinals,