Two weeks after faltering on the road to the Los Angeles Rams, the 49ers blew another 10-point lead and exited with a 24-23 loss to the Arizona Cardinals, who went ahead on Chad Ryland’s 35-yard field goal with 1 1/2 minutes to go. As the Bay Area heat wave continued, temperatures on the field reached nearly 115 degrees.

Brock Purdy's pass was tipped at the line and the Arizona Cardinals snatched the ball from the air to secure a much-needed victory in San Francisco. Seconds earlier, Chad Ryland kicked a 35-yard field goal that put the Cardinals up 24-23.

The 49ers just blew another 10-point fourth quarter lead and lost 24-23 to the Arizona Cardinals. Now the 49ers are 2-3. Here are their grades for this pathetic performance.