The 2013 fourth-round pick was brought into San Francisco to serve as Brian Hoyer's backup in 2017. Barkley got his first extended look as a starter with the Bears at the tail end of last season, throwing for 1,611 yards with eight touchdowns and 14 interceptions in six starts. The interceptions are a glaring red flag, but in his defense, he didn't have much receiving help to work with outside of four games with a healthy Alshon Jeffery. On a positive note, Barkley finished the season with 7.5 YPA, which would've ranked just outside the top 10 among qualified passers. The 26-year-old won't generate fantasy interest as a backup, but given Brian Hoyer's shaky injury history, there could be some value in his arm if he is called upon to commandeer Kyle Shanahan's offense.