Ayers signed with the Giants on Tuesday, Michael Eisen of the Giants' official site reports.
The Giants continue to revamp their linebacking corps as Ayers is the third addition in the past two weeks. The veteran linebacker most recently played with the Colts last season, recording 21 tackles and two sacks across 16 games. Ayers could play a sizeable defensive role with his new team right out of the gate given the long list of injuries with which the Giants are currently dealing.