Head coach Kyle Shanahan told reporters Friday that the team put in a request to the NFL to switch from their usual red home jerseys to white, as that color would be less absorbent to the sun's rays. However, the league declined. The Cardinals will wear their white jerseys on Sunday.

Amid what constitutes scalding conditions for Northern California, 49ers coach Kyle Shanahan told reporters Friday that the team asked the NFL to switch to white uniforms from red uniforms and was refused. The team will be able to wear white pants with its throwback uniforms, but that's it.

With record heat descending on the Bay Area on Sunday, the NFL has denied the San Francisco 49ers' request to wear white uniforms for their home match against the Arizona Cardinals. The decision will leave the 49ers in their red home uniforms for the game in Santa Clara, where temperatures are expected to hit 100 degrees.