"Alex Smith and Michael Crabtree have a dangerous streak going - botched pass attempts that lead to costly interceptions.

It happened again Sunday when a third-and-four pass intended for Crabtree was picked off by Kansas City cornerback Brandon Flowers. Hearing them explain the play afterward, it's clear the quarterback and wide receiver still aren't on the same wavelength.

"It seemed like (Flowers) was inside, and (Smith) threw the ball inside," Crabtree said.

Said Smith: "I went to my progression. He's No. 3. He's really the outlet on that play. When I threw it, I was anticipating - I guess from my perspective - I thought he was going to come in front, and it didn't happen."

Four of Smith's five interceptions this season have come on passes to Crabtree, who missed the exhibition season because of a sore neck.

Through three games, Smith's favorite wide receiver has been Josh Morgan, who has hauled in 10 passes vs. six for Crabtree. The team's wideouts have 21 receptions combined so far this season. Meanwhile, running back Frank Gore has 22 catches, and tight end Vernon Davis has 15. Why aren't the wide receivers more involved?

"Tough to say at this point," Smith said. "I have to look at it."

Morgan injured - Through 59 minutes, 57 seconds, the 49ers had one silver lining: no injuries. Even that bit of good news, however, evaporated when Morgan suffered a knee injury on his 12-yard touchdown reception as time expired.

Singletary called a timeout to give the 49ers one last shot at the end zone. Why not run out the clock?"