Much of Sabretooth's history is unclear. Sabretooth was part of the mutant enhancement program headed by Col. Stryker and he was freed by Logan when he fled the project. This angered Sabretooth, who swore revenge on Logan and joined the Brotherhood with the intention of exacting his vengeance. Sabretooth was sent by Magneto to capture Rogue, and would have succeeded except for the X-Men's intervention. However, he recognized and grabbed Logan's dog tags from Stryker's program. During the Liberty Island incident, Sabretooth was tasked with guarding the captive X-Men, but Wolverine broke free by stabbing himself, and attacked Sabretooth. After a pitched battle, Wolverine recovered Cyclops's visor, and Cyclops blasted Sabretooth far out into the water.
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