The 49ers on Monday extended one-year qualifying offers to nose tackle Mike Purcell and linebacker Carl Bradford as exclusive-rights free agents.

Purcell appeared in 15 games last season. He started the first five games of the season at nose tackle and was a reserve for the remainder of the season. Originally signed in 2013 as an undrafted rookie from Wyoming, Purcell has appeared in 25 games over the past three seasons.

The 49ers claimed Bradford off waivers in December from the Green Bay Packers. He appeared in the final two games of the season with the 49ers and was credited with two tackles.

Bradford entered the NFL out of Arizona State as a fourth-round pick of the Packers in 2014. After being inactive for every game as a rookie, Bradford was among Green Bay’s final cuts in 2015. He spent the season on the practice squad.

He appeared in four games for the Packers last year. The 49ers claimed him after he was waived in December.

Exclusive rights free agents are player who have fewer than three years of NFL service who have no outside negotiating power if a team extends a qualifying offer.