After having another fourth quarter collapse for the second time in three weeks, San Francisco 49ers head coach Kyle Shanahan expressed that the team's struggles at the end of the games are "extremely frustrating.

This marked the sixth time they have blown a double-digit lead in the fourth quarter in the regular season and playoffs under coach Kyle Shanahan, tied for the most by any coach in the NFL since he was hired in 2017.

Head coach Kyle Shanahan on San Francisco 49ers Week 5 loss to the Arizona Cardinals. Home; NFL; NCAAF; MLB; WNBA; NBA; NHL; Fantasy Football; MMA; Boxing; Tennis; Golf; Motorspor

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,

The San Francisco 49ers' red zone woes cost them dear in Week 5 as they went down to a stunning 24-23 defeat to the Arizona Cardinals. San Francisco went one for six inside the 20, with their problems in that regard magnified by the loss of kicker Jake Moody to a high ankle sprain.

Sept. 22 to the Los Angeles Rams and Sunday's 24-23 defeat to the Arizona Cardinals -- very likely should have been wins, but in both cases, San Francisco coughed up double-digit leads. After the 49ers blew a 13-point lead at home to the Cardinals,