The 20-year-old was shown the way out after receiving a second caution for removing his jersey while celebrating his historic goal.
In a tight Group A encounter, Adem Buyuk handed Gala an 11th-minute lead and held onto that until the Senegalese fired into the far top corner in the game’s closing stages.
Angola star Clinton Mata was also sent off for a second caution after breaking the corner flag while celebrating his team’s equaliser.
Nigeria’s Emmanuel Dennis was handed a starter’s role by manager Philippe Clement but made way for Siebe Schrijvers after 58 minutes.
With 13 minutes left to play, David Okereke replaced Lois Openda while Percy Tau was an unused substitute.
Despite the draw, the Belgians were kicked out of the competition as they needed a win at the Turk Telecom Stadium.
With three points from five games, they remain in third position and they host Real Madrid in their last group fixture on December 11.
