Balogun was helped off the pitch by two Monaco training staff, but was in visible pain as he departed the match. Shortly thereafter, he was ruled out of the October camp with the U.S. and Mauricio Pochettino's debut. Now, the nature of it has been revealed to be a dislocation of the glenohumeral joint in his left shoulder.
The timing arrives at an unlucky moment for the 23-year-old, who has scored in three-straight Ligue 1 matches for the French club.
He will miss at least eight matches across all competitions through November and potentially more into December, as he now embarks on a road to recovery.