"After blowing double-digit leads in the second half in each of their first three losses, the Vikings' beleaguered offense and its embattled quarterback Donovan McNabb had their chance to prove their mettle Sunday against the Chiefs.

Armed with all three timeouts and trailing by five points, Minnesota took over at its 15-yard line with 4:07 remaining.

A 15-yard completion to tight end Visanthe Shiancoe and a 23-yard dash around the right end by Percy Harvin marched the Vikings to the Kansas City 41-yard line as the clock stopped for the two-minute warning.

McNabb was firing on all cylinders for the first time all season. He was coming off a drive in which he hit Michael Jenkins for a 1-yard touchdown pass to pull within 22-17, having completed a 20-yard bullet to the ghost known as Bernard Berrian on a perilous fourth-and-14 play.

And then wheels came off. "