Arizona jumps ahead

Posted by ESPN.com's Ted Miller

TUCSON, Ariz. -- A huge stop for Arizona. A huge run by Nic Grigsby

Stanford went for it on fourth-and-1 inside Arizona's 10, and a Chris Owusu dropped a quick hitch pass from Andrew Luck.

Of note: Toby Gerhart limped off the field after a third-down carry. So he wasn't available.

Then, on third and 17, Grigsby slashed 57 yards for the go-ahead score. He was just faster than the Stanford defense, which may be getting tired in the heat and amid the 555 yards they've surrendered.

Arizona now leads for the first time since the first quarter, 43-38.

Well over 1,000 yards of offense