Dolphins ink ex-Giant who injured Mark Sanchez

BY NICK ST. DENIS

Before getting cut by the New York Giants, Marvin Austin got his last shot in this preseason, delivering the hit that injured New York Jets quarterback Mark Sanchez's shoulder and ultimately gave rookie Geno Smith the job.

Maybe Smith is next.

The Miami Dolphins signed Austin, a former second round defensive tackle, Tuesday to help deepen a somewhat shorthanded defensive front. Defensive tackle Paul Soliai and defensive end Cameron Wake are both sidelined to injury.