49ers rebuff trade offers for Mullens

Daily 49ers blog for NBC Bay Area website: Nick Mullens is Jimmy Garoppolo's backup, but the 49ers believe in his skills. So when other teams asked about trading for him recently, the 49ers said "no thanks."https://www.nbcbayarea.com/news/sports/49ers-have-faith-in-backup-qb-mullens/2266853/