Conversation so far:
What happened with Ben Roethlisberger in the 2015 season?
On March 13, Ben Roethlisberger signed a five-year contract extension with the Steelers.
Why did Ben Roethlisberger sign an extension with the Steelers in 2015?
Ben Roethlisberger said he wants to play his entire career with the Steelers so he can raise his children in Pittsburgh
How did the 5 year extension with the Steelers go for Ben Roethlisberger?
During the 2015 season, Ben Roethlisberger suffered a sprained MCL and a bone bruise, missing four games. He also suffered a left mid-foot sprain.
Did the Steelers win the 2015 season?
In 2015, The Steelers lost to the eventual Super Bowl champion Denver Broncos in the Divisional Round by a score of 23–16.
Are there other interesting aspects about Ben Roethlisberger's 2015 MCL sprain and bone bruise besides them causing him to miss 4 games?
During the September 27 game against the St. Louis Rams, Ben Roethlisberger suffered a sprained MCL and a bone bruise
Did Ben Roethlisberger recover from the sprained MCL and the bone bruise sustained on September 27, 2015?
After the September 27, 2015 injuries, Ben Roethlisberger missed the Steelers' next four games
Did Ben Roethlisberger get any other injuries during the 2015 season besides the sprained MCL and the bone bruise?
Ben Roethlisberger sustained another injury against the Oakland Raiders on November 8, 2015, suffering a left mid-foot sprain.

Question: How long did it take for him to recover?
Self-contained rewrite: How long did it take for Ben Roethlisberger to recover from the left mid-foot sprain sustained in the 2015 season?