The 49ers on Friday reached a one-year extension with tight end Garrett Celek, who was scheduled to be a restricted free agent, according to a league source.
The team also signed long-snapper Kyle Nelson to a four-year extension, according to an ESPN report. Nelson was also scheduled to be a restricted free agent.
Earlier in the day, the 49ers extended qualifying offers to linebacker Michael Wilhoite and defensive lineman Tony Jerod-Eddie, a sources told CSNBayArea.com. Both Wilhoite and Jerod-Eddie are exclusive-rights free agents and have no outside negotiating power.
Celek, who made the 49ers' 53-man roster as an undrafted rookie in 2012 from Michigan State, appeared in just three games last season due to a back injury was diagnosed upon reporting to training camp. In 28 career games, Celek has eight receptions for 142 yards and no touchdowns.
Nelson, 28, beat out Kevin McDermott in training camp for the team's long-snapper job. He played in all 16 regular season games and recorded four tackles. He played 11 games in 2013 with Washington, and saw action in six games in 2012 with San Diego.