Strasbourg suffer setback as Emmanuel Emegha likely to sit out semi-final against Rayo Vallecano
Strasbourg head into their home fixture against Rayo Vallecano trailing 1-0 following Alemao's goal in the 54th minute of the first leg.
However, for the Ligue 1 outfit to reverse the scoreline and advance to the final in Germany, they must achieve it without Emegha.
O'Neil announced during his press conference that the 23-year-old has picked up a hamstring injury, which will sideline him for the remaining two league fixtures of the season, along with Strasbourg's return match versus Vallecano.
The ex-Wolves manager provided a slight possibility of recovery for the final, should they qualify, noting there is "maybe a chance" for him to participate. Yet at present, this could mark his last appearance for the team.
Emegha's full transfer to Chelsea on a seven-year deal was announced in September, and the striker has faced a challenging year marred by various injuries.
The Netherlands player has appeared in just 18 outings across all competitions this season, netting eight goals.