Comment and Analysis
The Algeria international has scored four times in 20 matches for the Bundesliga outfit since a summer loan move and will now stay until 2021
There is excitement in the Windy City once again after the Fire went through a major overhaul following a last-place finish in 2016.
The Columbus Crew enter the new season with a retooled roster after following up their conference title in 2015 with a lackluster campaign last year.
After posting the second best record in MLS in 2016, the Rapids are back and looking to duplicate their success with few changes.