NEW ORLEANS - Alabama delivered what everyone expected from the first play of the BCS title game, when a host of red jerseys stuffed LSU running back Michael Ford at the line of scrimmage: a rock 'em, sock 'em affair dominated by defense.

The Crimson Tide's was simply better.

Led by bruising linebacker Courtney Upshaw and the opportunistic C.J. Mosley, the second-ranked Crimson Tide shut down the Southeastern Conference's top scoring offense in a 21-0 victory Monday night that earned Alabama its second BCS championship in three years.

"I'll tell you what, our defense controlled the tempo of this game," Crimson Tide coach Nick Saban said. "It was just a great team win. Every guy here, every fan that we have."

Alabama wins BCS championship Dave Martin / AP Top images   Click to view photos of title game action between Crimson Tide and Tigers. 'Bama blanks, boots LSU 21-0 for title   |  Stats CFT: 'Bama No. 1  |  Anti-Tide voters  |  Polls Estes: 'Dominating night' gives Tide worthy title Opinion: Keep dreaming, Okla. St.   |  Gundy whines Opinion: It was all about Saban   |  'Special team' CFT: Saban's defense never rests  |  'No fluke' Shelley 5 FGs redeem Alabama kickers QBs: McCarron steady  |  Jefferson falls apart CFT vote: 'Bama to repeat as national champs? 'Bama fans celebrate on Bourbon Street CFT: Trojans team to beat next season  |  Nope Tornado tragedy fueled Tide's title run CFT: MIles ripped after loss  |  No big raise   BCS title game winners  |  MVPs Ventre: And the BCS playoff winner would be ... CFT: Recruit's mom mad he picked Tide over LSU Rocky the Octopus aced his BCS picks

It was the first shutout in the history of the BCS title game, and the first blanking of the Tigers since 2002, when Alabama beat them 31-0 in Baton Rouge.

That was back when Saban was roaming the Tigers' sideline. The defensive-minded coach was on the other side this time, drawing up a game plan for Alabama that downright flummoxed LSU coach Les Miles, quarterback Jordan Jefferson and everyone else in the Superdome wearing purple and yellow.

The Crimson Tide didn't allow the Tigers to convert a third down until the fourth quarter, and didn't allow a snap in its own territory until there was 7:30 left in the game.

Of course, Alabama linebacker Dont'a Hightower promptly sacked Jefferson to force a fumble that was recovered by his good buddy Nick Gentry. The way things were going for the Tigers, it was a fitting way for their best offensive series of the night to end.

Trent Richardson added a touchdown run moments later to seal the victory, the only touchdown scored by either team in two meetings this season.

"We knew they were going to come out and try to run the ball against us," Upshaw said. "It's great to get the win. We really didn't call many blitzes. We were just hoping to contain them."

Contain them? How about downright dominating them, from start to finish.

Upshaw made a pair of stellar tackles at the line of scrimmage to force 3-and-out on LSU's second possession, and Mosley and cornerback Dre Kirkpatrick did so again on its next possession.

Jim Rogash / Getty Images The Week in Sports Pictures The nation grieved for those hurt, killed and affected by the Boston Marathon bombings. After one of the suspects was caught on Friday — following a day-long lockdown and manhunt — sports returned to Boston over the weekend.

Miles, stubbornly sticking with Jefferson at quarterback, tried all night to get to the edge against the Crimson Tide's brutish defense. But each time, an Alabama cornerback or safety would fly to the ball, throwing his body at the running back or receiver with total abandon.

"We just wanted to come out and make a statement to the world, to everybody and to each other and LSU, that we are the best defense," linebacker Nico Johnson said. "It was no fluke."

Even after halftime, when the Tigers generally get things going — they outscored opponents 264-61 after the break coming into the game — the Alabama defense was there to keep the momentum.

After LSU got its second first down of the night, Upshaw managed to wrestle Jefferson down for a sack, and two plays later LSU had to send punter Brad Wing out onto the field again.

"The game plan was to spread them out," Jefferson said. "I didn't imagine it this way. I definitely didn't see it this way, but situations like this happen. ... Some defenses will have your number and Alabama had our number."

Just about the only bleak moment for the Crimson Tide came later in the third quarter, when Mosley intercepted an errant shovel pass deep in LSU territory. He was returning the ball when he was tugged to the ground by Jefferson, his leg twisting at a gruesome angle.

The sophomore linebacker was eventually taken from the field by motorized cart.

Jefferson wound up 11 of 17 for 53 yards, while the LSU offense managed just 92 yards of total offense. Only 39 of that was on the ground, even below the 45.8 average that the Crimson Tide had allowed against Football Bowl Subdivision teams since to last year's Capital One Bowl.

"Toward the end, I could definitely tell they didn't want to play against us any longer," Tide defensive end Jesse Williams said. "It was sort of like the light at the end of the tunnel."