The Detroit Lions have added kicker David Akers one day after Jason Hanson retired.Akers’ agent, Jerrold Colton, confirmed Friday that he and the Lions agreed to terms. Colton declined to give details.The Lions didn’t have to look long to find someone to replace Hanson, who retired Thursday, ending his 21-year career in Detroit.San Francisco released Akers a month ago after he slumped during the 2012 season.Akers has made 367 of 453 field goals in his career with Washington, Philadelphia and San Francisco.Briefly • Raiders: Linebacker Rolando McClain was released less than three years after being drafted eighth overall. Second-year general manager Reggie McKenzie continues to overhaul the roster. Only 15 players remain who were part of the organization at the end of the 2011 season. • 49ers: Right tackle Anthony Davis has signed a five-year contract extension worth more than $37 million, with $17 million guaranteed. • Jaguars: Receiver Mohamed Massaquoi agreed to terms on a two-year contract after spending the last four seasons in Cleveland, catching 118 passes for 1,745 yards and seven touchdowns.