The 49ers announced the deal later in the day.
“Shaun did a heck of a job for us last year despite joining the team in the middle of the season,” 49ers general manager Trent Baalke said in the team's press release. “He certainly earned the respect of everyone in our organization for the way he handled himself, both on and off the field, and we are excited to have him back.”
Draughn rushed for 263 yards in six games with the 49ers last season.
San Francisco brought him on to provide relief at the running back position after starter Carlos Hyde suffered a Week 7 foot injury, one that would hold him out for the remainder of the season.
Draughn didn't necessarily star during his six games with the 49ers last season. He never rushed for more than 58 yards in a single game, but he did provide a nice dual-threat option out of the backfield thanks to his catching ability. In four of his six games, he recorded at least 35 receiving yards.
He provided a steady presence for a 49ers team that hasn't had much of that dating back to the 2015 offseason.
San Francisco had to deal with the departure of head coach Jim Harbaugh, who was replaced by Jim Tomsula. The 47-year-old didn't make it past his first season after the 49ers went 5-11.
The 49ers also had key defensive players Chris Borland, Patrick Willis and Justin Smith retire, while running back Frank Gore went to the Indianapolis Colts, and defensive end Aldon Smith was released all before the 2015 season even started.
On top of that, quarterback Colin Kaepernick struggled mightily in 2015 and was benched in favor of Blaine Gabbert. According to general manager Trent Baalke, the two will compete for the starting job this offseason since the team plans on keeping Kaepernick for 2016, per Michael David Smith of Pro Football Talk.
But according to ESPN's Adam Caplan (h/t ESPN.com's Paul Gutierrez), Kaepernick wants out of San Francisco. If that's the case, it could force new head coach Chip Kelly to either move forward with Gabbert or try to acquire a new arm for the 2016 season.
The 49ers will also have to keep a close eye on Hyde's health in his third year in the league and see if he's capable of being a dominant No. 1 back. If Hyde can't stay healthy or if he struggles, Draughn will be able to provide some relief, but he isn't the answer to the multitude of San Francisco's problems.
Stats courtesy of Pro-Football-Reference.com.