Coming off a career year, Geno Smith says he'll be "much better" after signing a new contract with the Seattle Seahawks.

"I'll be much better! Can't wait," Smith wrote in response to a tweet about the three-year, $105 million deal he received.

In the first season since the Seahawks traded long-time starter Russell Wilson, Smith, 32, led the NFL with a 69.8 percent completion rate, threw for 4,282 yards, 30 touchdowns and 11 interceptions.