Former Ravens kicker Matt Stover announced his retirement Thursday, ending a career that spanned two decades in the NFL. A one-time Pro Bowl selection who provided much of the offense for the Ravens' Super Bowl championship team in 2000, Stover leaves the NFL as the fourth-ranked scorer in the league's history with 2,004 points and 471 field goals. He is the Ravens' all-time leading scorer with 1,464 points. "No regrets," the 43-year-old kicker said during a news conference at the Ravens' training complex. "I gave it all I had. I can look back at that and say I did all I could to be everything I could be."