Doumbia joined Newcastle on loan from Serie A outfit Roma in the January transfer window and will remain at St. James’ Park until the end of the season.
The 28-year-old forward moved to Roma from Russian side CSKA Moscow in January 2015, but he struggled to make a huge impact in Serie A.
The Ivory Coast international forward made 13 appearances for the Giallorossi before returning to CSKA on loan in the summer of 2015.
Doumbia recovered his form in Moscow, scoring five goals and creating 16 chances in nine appearances in the Russian Premier League this season.
The former Young Boys man also scored three goals and created three chances in six Champions League games for CSKA this campaign.
Much was expected of the 28-year-old when he joined Newcastle in the January transfer windiw, but he is struggling to get into the team at the moment.
Doumbia, whose current contract with Roma runs until June 2019, has managed to play just times in the Premier League for the Magpies, and Sabatini has suggested that the forward should not have joined Newcastle.
“Doumbia had many offers last year, but now things are more complicated because he made the mistake of going to Newcastle,” Sabatini told La Gazzetta dello Sport. “The Premier League is not his championship.”
Newcastle are third from bottom in the Premier League at the moment with 34 points from 37 matches.