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.

The 49ers will look to earn their first win over an NFC West division rival this year Sunday as they face Kyler Murray and the Arizona Cardinals. Active for the Niners are two All-Pros who were questionable entering Sunday’s game after missing two practices last week: tight end George Kittle (ribs) and linebacker Fred Warner (ankle).