PALO ALTO, Calif. _ Stanford's Christian McCaffrey always seemed to be one cut away from tearing a huge chunk out of USC's defense during Saturday evening's game. There were exceptions: On some plays, he actually did tear huge chunks out of USC's defense.
There was a long touchdown reception when he was inexplicably uncovered. There was one of the patient, tackle-shedding runs that have made him a Heisman Trophy favorite. Mostly, though, he wore USC down with consistency.
USC could not get in McCaffrey's way often enough, nor could it get out of its own way with enough frequency. The Trojans hobbled themselves with penalties and muddled play calls, in a 27-10 loss to the No. 7 Cardinal in a Pac-12 Conference opener.
USC committed six false starts. Officials threw eight flags on USC overall, for 56 penalty yards, enough to saddle the offense with too many third-and-long tries.
"We clean up the errors, we will be a good football team," Coach Clay Helton said after the game.
Instead, USC was left staring at another masterpiece painted by McCaffrey, who has quickly become a vexing nemesis. Last season, in two games against USC, McCaffrey tallied 710 all-purpose yards against USC, including 461 in the Pac-12 title game. In the past 20 years, only two players had more all-purpose yards against the same opponent in a two-game span.
This season, he relegated USC to 1-2, with a suddenly crucial trip to Utah looming over the Trojans like an anvil Friday.
Helton vowed the two early losses would not derail the season.
"They took a giant leap forward in my mind the way they competed today," he said. "This is going to become a good football team."
McCaffrey was Stanford's leading rusher, with 30 carries for 165 yards and a touchdown. He was Stanford's leading receiver, with four catches for 73 yards and a touchdown. He added another 22 on kickoff returns.
He amassed 260 all-purpose yards and accounted for almost 60 percent of Stanford's offense.
He wheeled out of the backfield in the first quarter, past safety Marvell Tell III, who was rendered a spectator. McCaffrey caught the wide-open pass and waltzed into the end zone for, a 56-yard reception, the game's first score.
After a USC field goal, he hobbled safety Chris Hawkins with a stop-and-go route in the second quarter. The pass failed to connect for another touchdown only because it was overthrown.
He stuttered, burst through a hole and shrugged off a tackle attempt by Tell before halftime, then went 33 yards to set up his second touchdown, a few plays after. It put Stanford up 17-3 at the break.
The score belied the fact that USC's offense mostly kept apace. Both teams averaged 6.3 yards per play in the first 30 minutes. But Stanford scored two touchdowns, one gifted by the miscommunication in the secondary. USC failed to advance the ball into the red zone, mostly because of penalties and muddled play calling.
Statistically, the teams were similar overall. The Cardinal accumulated 404 total yards, to USC's 353. USC's offense controlled the line of scrimmage with the running game early on.
Quarterback Max Browne played efficiently, completing 18 of 28 passes for 191 yards. Tight end Tyler Petite led USC with 73 receiving yards, on three catches.
And Justin Davis and Ronald Jones II each rushed for 63 yards _ Davis on 14 carries, Jones on 11. Jones also added a touchdown.
"The biggest thing," Helton said, "was eliminating errors that are killing us."
Also killing them was McCaffrey. He occupied a large swath of USC's psyche. After USC began the second half with a touchdown drive, set up by a 38-yard connection between Browne and Petite, Stanford answered with a field goal, then a gut punch.
Quarterback Ryan Burns faked a handoff to McCaffrey. USC's defense collapsed on him, as if magnetized. Burns then handed to receiver Michael Rector on an end around, and he went 56 yards almost untouched down the sideline to put Stanford up, 27-10.
McCaffrey was too hard to ignore.
"He ran hard," linebacker Cameron Smith said. "To be expected."
"He might get hit and it's a two-yard gain, and you look up and it's a five-yard gain," Stanford Coach David Shaw said.
Stanford (2-0) did not score in the fourth quarter, and it did not need to. USC threatened to make a game of it once in the period: a catch went off JuJu Smith-Schuster's hand in the end zone, when a defender appeared to be holding his off hand. Then, on fourth down, Davis tripped over a lineman's leg and fell about a foot short of a first down.
Little fight remained. Down 17, with little more than nine minutes left, in Stanford territory, USC faced a fourth and six.
It sent out the punt team.
