The Jaguars signed outside linebacker Telvin Smith to a four-year contract extension Wednesday night. Financial details weren’t released, but ESPN valued the deal at $50 million. Smith, whose rookie contract expires after the season, leads the Jaguars with 58 tackles and two interceptions and has played 475 of 480 defensive snaps. Smith is a part of a Jaguars’ defense that ranks first in takeaways (16) and second in fewest points allowed (15.7). In a statement released by the team, executive vice president Tom Coughlin said: “We want to identify the players who will contribute to help this team win going forward, and reward those who can do that. Telvin is certainly one of those players for us. This is a high performance business, and we look for his continued development as a team leader both on and off the field. Along with this new contract Telvin must accept the high expectations that go with it.”